1232113111131 has 16 divisors (see below), whose sum is σ = 1877525028864. Its totient is φ = 704057384064.

The previous prime is 1232113111091. The next prime is 1232113111133. The reversal of 1232113111131 is 1311113112321.

It is a de Polignac number, because none of the positive numbers 2^k-1232113111131 is a prime.

It is a super-2 number, since 2×1232113111131² (a number of 25 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 = 1232113111098 and 1232113111107.

It is not an unprimeable number, because it can be changed into a prime (1232113111133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311270 + ... + 2793956.

It is an arithmetic number, because the mean of its divisors is an integer number (117345314304).

Almost surely, 2^{1232113111131} is an apocalyptic number.

1232113111131 is a deficient number, since it is larger than the sum of its proper divisors (645411917733).

1232113111131 is a wasteful number, since it uses less digits than its factorization.

1232113111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604250.

The product of its digits is 108, while the sum is 21.

Adding to 1232113111131 its reverse (1311113112321), we get a palindrome (2543226223452).

The spelling of 1232113111131 in words is "one trillion, two hundred thirty-two billion, one hundred thirteen million, one hundred eleven thousand, one hundred thirty-one".