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12203230131 = 3229591137013
BaseRepresentation
bin10110101110101111…
…01000001110110011
31011111110112022200100
423113113220032303
5144443011331011
65334525323443
7611256513261
oct132727501663
934443468610
1012203230131
1151a2450464
122446a06583
1311c62b0141
1483aa01431
154b6516d56
hex2d75e83b3

12203230131 has 48 divisors (see below), whose sum is σ = 18710546400. Its totient is φ = 7652391936.

The previous prime is 12203230103. The next prime is 12203230157. The reversal of 12203230131 is 13103230221.

It is not a de Polignac number, because 12203230131 - 211 = 12203228083 is a prime.

It is a super-2 number, since 2×122032301312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12203230331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1736581 + ... + 1743593.

It is an arithmetic number, because the mean of its divisors is an integer number (389803050).

Almost surely, 212203230131 is an apocalyptic number.

12203230131 is a deficient number, since it is larger than the sum of its proper divisors (6507316269).

12203230131 is a wasteful number, since it uses less digits than its factorization.

12203230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7220 (or 7217 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12203230131 its reverse (13103230221), we get a palindrome (25306460352).

The spelling of 12203230131 in words is "twelve billion, two hundred three million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 3 9 29 59 87 113 177 261 339 531 1017 1711 3277 5133 6667 7013 9831 15399 20001 21039 29493 60003 63117 193343 203377 413767 580029 610131 792469 1241301 1740087 1830393 2377407 3723903 7132221 11999243 22981601 35997729 46755671 68944803 107993187 140267013 206834409 420801039 1355914459 4067743377 12203230131