102131323122 has 16 divisors (see below), whose sum is σ = 204868770912. Its totient is φ = 33942753600.

The previous prime is 102131323117. The next prime is 102131323123. The reversal of 102131323122 is 221323131201.

It is not an unprimeable number, because it can be changed into a prime (102131323123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25253004 + ... + 25257047.

It is an arithmetic number, because the mean of its divisors is an integer number (12804298182).

Almost surely, 2^102131323122 is an apocalyptic number.

102131323122 is an abundant number, since it is smaller than the sum of its proper divisors (102737447790).

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

102131323122 is a wasteful number, since it uses less digits than its factorization.

102131323122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50510393.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 102131323122 its reverse (221323131201), we get a palindrome (323454454323).

The spelling of 102131323122 in words is "one hundred two billion, one hundred thirty-one million, three hundred twenty-three thousand, one hundred twenty-two".