102131233213220 has 24 divisors (see below), whose sum is σ = 214801045905600. Its totient is φ = 40790501636192.

The previous prime is 102131233213211. The next prime is 102131233213241. The reversal of 102131233213220 is 22312332131201.

It is a self number, because there is not a number n which added to its sum of digits gives 102131233213220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3874464560 + ... + 3874490919.

It is an arithmetic number, because the mean of its divisors is an integer number (8950043579400).

Almost surely, 2^{102131233213220} is an apocalyptic number.

102131233213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102131233213220 is an abundant number, since it is smaller than the sum of its proper divisors (112669812692380).

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

102131233213220 is a wasteful number, since it uses less digits than its factorization.

102131233213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7748956147 (or 7748956145 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 102131233213220 its reverse (22312332131201), we get a palindrome (124443565344421).

The spelling of 102131233213220 in words is "one hundred two trillion, one hundred thirty-one billion, two hundred thirty-three million, two hundred thirteen thousand, two hundred twenty".