102320010020 has 48 divisors (see below), whose sum is σ = 216710457600. Its totient is φ = 40578624000.

The previous prime is 102320009999. The next prime is 102320010103. The reversal of 102320010020 is 20010023201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102320009983 and 102320010010.

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, 2063276 + ... + 2112284.

It is an arithmetic number, because the mean of its divisors is an integer number (4514801200).

Almost surely, 2^102320010020 is an apocalyptic number.

102320010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102320010020 is an abundant number, since it is smaller than the sum of its proper divisors (114390447580).

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

102320010020 is a wasteful number, since it uses less digits than its factorization.

102320010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49908 (or 49906 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 102320010020 its reverse (20010023201), we get a palindrome (122330033221).

The spelling of 102320010020 in words is "one hundred two billion, three hundred twenty million, ten thousand, twenty".