31112202102112 has 96 divisors (see below), whose sum is σ = 62459282995200. Its totient is φ = 15252112032768.

The previous prime is 31112202102109. The next prime is 31112202102131. The reversal of 31112202102112 is 21120120221113.

It is a self number, because there is not a number n which added to its sum of digits gives 31112202102112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424605689 + ... + 1424627527.

It is an arithmetic number, because the mean of its divisors is an integer number (650617531200).

Almost surely, 2^{31112202102112} is an apocalyptic number.

31112202102112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31112202102112 is an abundant number, since it is smaller than the sum of its proper divisors (31347080893088).

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

31112202102112 is a wasteful number, since it uses less digits than its factorization.

31112202102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25508 (or 25500 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 31112202102112 its reverse (21120120221113), we get a palindrome (52232322323225).

The spelling of 31112202102112 in words is "thirty-one trillion, one hundred twelve billion, two hundred two million, one hundred two thousand, one hundred twelve".