102402030020 has 24 divisors (see below), whose sum is σ = 216245635200. Its totient is φ = 40731979232.

The previous prime is 102402029981. The next prime is 102402030043. The reversal of 102402030020 is 20030204201.

It is a junction number, because it is equal to n+sod(n) for n = 102402029977 and 102402030004.

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, 14298380 + ... + 14305539.

It is an arithmetic number, because the mean of its divisors is an integer number (9010234800).

Almost surely, 2^102402030020 is an apocalyptic number.

102402030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102402030020 is an abundant number, since it is smaller than the sum of its proper divisors (113843605180).

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

102402030020 is a wasteful number, since it uses less digits than its factorization.

102402030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28604107 (or 28604105 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 102402030020 its reverse (20030204201), we get a palindrome (122432234221).

The spelling of 102402030020 in words is "one hundred two billion, four hundred two million, thirty thousand, twenty".