102101431020 has 48 divisors (see below), whose sum is σ = 289800238560. Its totient is φ = 26854073856.

The previous prime is 102101431001. The next prime is 102101431037. The reversal of 102101431020 is 20134101201.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 11651035 + ... + 11659794.

It is an arithmetic number, because the mean of its divisors is an integer number (6037504970).

Almost surely, 2^102101431020 is an apocalyptic number.

102101431020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102101431020 is an abundant number, since it is smaller than the sum of its proper divisors (187698807540).

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

102101431020 is a wasteful number, since it uses less digits than its factorization.

102101431020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23310914 (or 23310912 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102101431020 its reverse (20134101201), we get a palindrome (122235532221).

The spelling of 102101431020 in words is "one hundred two billion, one hundred one million, four hundred thirty-one thousand, twenty".