112131312102 has 24 divisors (see below), whose sum is σ = 247535162784. Its totient is φ = 36671875344.

The previous prime is 112131312079. The next prime is 112131312151. The reversal of 112131312102 is 201213131211.

It is a super-2 number, since 2×112131312102² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58768078 + ... + 58769985.

It is an arithmetic number, because the mean of its divisors is an integer number (10313965116).

Almost surely, 2^112131312102 is an apocalyptic number.

112131312102 is an abundant number, since it is smaller than the sum of its proper divisors (135403850682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112131312102 is a wasteful number, since it uses less digits than its factorization.

112131312102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117538124 (or 117538121 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 112131312102 its reverse (201213131211), we get a palindrome (313344443313).

The spelling of 112131312102 in words is "one hundred twelve billion, one hundred thirty-one million, three hundred twelve thousand, one hundred two".