102320023131020 has 48 divisors (see below), whose sum is σ = 227536847072640. Its totient is φ = 38516201416704.

The previous prime is 102320023130971. The next prime is 102320023131077. The reversal of 102320023131020 is 20131320023201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102320023130983 and 102320023131001.

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, 13643585 + ... + 19768344.

It is an arithmetic number, because the mean of its divisors is an integer number (4740350980680).

Almost surely, 2^{102320023131020} is an apocalyptic number.

102320023131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102320023131020 is an abundant number, since it is smaller than the sum of its proper divisors (125216823941620).

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

102320023131020 is a wasteful number, since it uses less digits than its factorization.

102320023131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33420962 (or 33420960 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 102320023131020 its reverse (20131320023201), we get a palindrome (122451343154221).

The spelling of 102320023131020 in words is "one hundred two trillion, three hundred twenty billion, twenty-three million, one hundred thirty-one thousand, twenty".