102020130320 has 40 divisors (see below), whose sum is σ = 247509711936. Its totient is φ = 39033788288.

The previous prime is 102020130319. The next prime is 102020130347. The reversal of 102020130320 is 23031020201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 102020130295 and 102020130304.

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, 27721022 + ... + 27724701.

Almost surely, 2^102020130320 is an apocalyptic number.

102020130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020130320 is an abundant number, since it is smaller than the sum of its proper divisors (145489581616).

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

102020130320 is a wasteful number, since it uses less digits than its factorization.

102020130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55445759 (or 55445753 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 102020130320 its reverse (23031020201), we get a palindrome (125051150521).

The spelling of 102020130320 in words is "one hundred two billion, twenty million, one hundred thirty thousand, three hundred twenty".