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213231130101 = 331117379111431
BaseRepresentation
bin1100011010010110010…
…0001101010111110101
3202101101102222201212000
43012211210031113311
511443144132130401
6241542415045513
721256031462223
oct3064544152765
9671342881760
10213231130101
1182481461070
12353aa810899
1317152557642
14a46b413b13
15582ed2e186
hex31a590d5f5

213231130101 has 64 divisors (see below), whose sum is σ = 365853542400. Its totient is φ = 121307155200.

The previous prime is 213231130097. The next prime is 213231130187. The reversal of 213231130101 is 101031132312.

213231130101 is a `hidden beast` number, since 21 + 32 + 311 + 301 + 0 + 1 = 666.

It is not a de Polignac number, because 213231130101 - 22 = 213231130097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231130001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1857856 + ... + 1969286.

It is an arithmetic number, because the mean of its divisors is an integer number (5716461600).

Almost surely, 2213231130101 is an apocalyptic number.

It is an amenable number.

213231130101 is a deficient number, since it is larger than the sum of its proper divisors (152622412299).

213231130101 is a wasteful number, since it uses less digits than its factorization.

213231130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111847 (or 111841 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 213231130101 its reverse (101031132312), we get a palindrome (314262262413).

The spelling of 213231130101 in words is "two hundred thirteen billion, two hundred thirty-one million, one hundred thirty thousand, one hundred one".

Divisors: 1 3 9 11 17 27 33 51 99 153 187 297 379 459 561 1137 1683 3411 4169 5049 6443 10233 12507 19329 37521 57987 70873 111431 112563 173961 212619 334293 637857 1002879 1225741 1894327 1913571 3008637 3677223 5682981 11031669 17048943 20837597 33095007 42232349 51146829 62512791 126697047 187538373 380091141 464555839 562615119 717949933 1140273423 1393667517 2153849799 4181002551 6461549397 7897449263 12543007653 19384648191 23692347789 71077043367 213231130101