102131112012 has 48 divisors (see below), whose sum is σ = 245019393024. Its totient is φ = 33090768000.

The previous prime is 102131111987. The next prime is 102131112067. The reversal of 102131112012 is 210211131201.

It is a junction number, because it is equal to n+sod(n) for n = 102131111982 and 102131112000.

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, 249664 + ... + 516327.

It is an arithmetic number, because the mean of its divisors is an integer number (5104570688).

Almost surely, 2^102131112012 is an apocalyptic number.

102131112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102131112012 is an abundant number, since it is smaller than the sum of its proper divisors (142888281012).

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

102131112012 is a wasteful number, since it uses less digits than its factorization.

102131112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766310 (or 766308 counting only the distinct ones).

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

Adding to 102131112012 its reverse (210211131201), we get a palindrome (312342243213).

The spelling of 102131112012 in words is "one hundred two billion, one hundred thirty-one million, one hundred twelve thousand, twelve".