113212321131 has 32 divisors (see below), whose sum is σ = 190805536768. Its totient is φ = 58102427520.

The previous prime is 113212321087. The next prime is 113212321153. The reversal of 113212321131 is 131123212311.

It is not a de Polignac number, because 113212321131 - 2⁹ = 113212320619 is a prime.

It is a super-2 number, since 2×113212321131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 113212321098 and 113212321107.

It is not an unprimeable number, because it can be changed into a prime (113212321331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5593915 + ... + 5614116.

It is an arithmetic number, because the mean of its divisors is an integer number (5962673024).

Almost surely, 2^113212321131 is an apocalyptic number.

113212321131 is a deficient number, since it is larger than the sum of its proper divisors (77593215637).

113212321131 is a wasteful number, since it uses less digits than its factorization.

113212321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11208091.

The product of its digits is 216, while the sum is 21.

Adding to 113212321131 its reverse (131123212311), we get a palindrome (244335533442).

The spelling of 113212321131 in words is "one hundred thirteen billion, two hundred twelve million, three hundred twenty-one thousand, one hundred thirty-one".