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203120013311210 = 251731731949270899
BaseRepresentation
bin101110001011110010010000…
…001111010111110011101010
3222122012002020222010020001202
4232023302100033113303222
5203110404241401424320
62000000013530444202
760532636166014322
oct5613622017276352
9878162228106052
10203120013311210
11597a1794206046
121a946029593662
13894519a986ba8
1438230bd92a282
15187393ea17b75
hexb8bc903d7cea

203120013311210 has 128 divisors (see below), whose sum is σ = 405294140160000. Its totient is φ = 72950534184960.

The previous prime is 203120013311123. The next prime is 203120013311233. The reversal of 203120013311210 is 12113310021302.

It is a happy number.

It is a super-4 number, since 4×2031200133112104 (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 749664341 + ... + 749935239.

It is an arithmetic number, because the mean of its divisors is an integer number (3166360470000).

Almost surely, 2203120013311210 is an apocalyptic number.

203120013311210 is a deficient number, since it is larger than the sum of its proper divisors (202174126848790).

203120013311210 is a wasteful number, since it uses less digits than its factorization.

203120013311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272976.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 203120013311210 its reverse (12113310021302), we get a palindrome (215233323332512).

The spelling of 203120013311210 in words is "two hundred three trillion, one hundred twenty billion, thirteen million, three hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 17 31 34 62 73 85 146 155 170 310 365 527 730 1054 1241 1949 2263 2482 2635 3898 4526 5270 6205 9745 11315 12410 19490 22630 33133 38471 60419 66266 76942 120838 142277 165665 192355 270899 284554 302095 331330 384710 541798 604190 711385 1027123 1354495 1422770 2054246 2418709 2708990 4410587 4605283 4837418 5135615 8397869 8821174 9210566 10271230 12093545 16795738 19775627 22052935 23026415 24187090 39551254 41989345 44105870 46052830 74979979 83978690 98878135 142763773 149959958 197756270 285527546 336185659 374899895 527982151 613044437 672371318 713818865 749799790 1055964302 1226088874 1427637730 1680928295 2639910755 3065222185 3361856590 5279821510 6130444370 8975696567 10421755429 16367446681 17951393134 20843510858 32734893362 38542697023 44878482835 52108777145 77085394046 81837233405 89756965670 104217554290 163674466810 192713485115 278246593577 385426970230 556493187154 655225849391 1194823607713 1310451698782 1391232967885 2389647215426 2782465935770 3276129246955 5974118038565 6552258493910 11948236077130 20312001331121 40624002662242 101560006655605 203120013311210