31113223102112 has 96 divisors (see below), whose sum is σ = 62345561048064. Its totient is φ = 15281641753600.

The previous prime is 31113223102111. The next prime is 31113223102141. The reversal of 31113223102112 is 21120132231113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31113223102111) 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, 1195683662 + ... + 1195709682.

It is an arithmetic number, because the mean of its divisors is an integer number (649432927584).

Almost surely, 2^{31113223102112} is an apocalyptic number.

31113223102112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31113223102112 is an abundant number, since it is smaller than the sum of its proper divisors (31232337945952).

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

31113223102112 is a wasteful number, since it uses less digits than its factorization.

31113223102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28662 (or 28654 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 31113223102112 its reverse (21120132231113), we get a palindrome (52233355333225).

The spelling of 31113223102112 in words is "thirty-one trillion, one hundred thirteen billion, two hundred twenty-three million, one hundred two thousand, one hundred twelve".