102131312133020 has 12 divisors (see below), whose sum is σ = 214475755479384. Its totient is φ = 40852524853200.

The previous prime is 102131312133007. The next prime is 102131312133029. The reversal of 102131312133020 is 20331213131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102131312133029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553282803306 + ... + 2553282803345.

It is an arithmetic number, because the mean of its divisors is an integer number (17872979623282).

Almost surely, 2^{102131312133020} is an apocalyptic number.

102131312133020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102131312133020 is an abundant number, since it is smaller than the sum of its proper divisors (112344443346364).

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

102131312133020 is a wasteful number, since it uses less digits than its factorization.

102131312133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106565606660 (or 5106565606658 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 102131312133020 its reverse (20331213131201), we get a palindrome (122462525264221).

The spelling of 102131312133020 in words is "one hundred two trillion, one hundred thirty-one billion, three hundred twelve million, one hundred thirty-three thousand, twenty".