102031112112 has 20 divisors (see below), whose sum is σ = 263580373080. Its totient is φ = 34010370688.

The previous prime is 102031112093. The next prime is 102031112173. The reversal of 102031112112 is 211211130201.

It is a junction number, because it is equal to n+sod(n) for n = 102031112091 and 102031112100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062824037 + ... + 1062824132.

It is an arithmetic number, because the mean of its divisors is an integer number (13179018654).

Almost surely, 2^102031112112 is an apocalyptic number.

102031112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102031112112 is an abundant number, since it is smaller than the sum of its proper divisors (161549260968).

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

102031112112 is a wasteful number, since it uses less digits than its factorization.

102031112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125648180 (or 2125648174 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 102031112112 its reverse (211211130201), we get a palindrome (313242242313).

The spelling of 102031112112 in words is "one hundred two billion, thirty-one million, one hundred twelve thousand, one hundred twelve".