102421504375 has 20 divisors (see below), whose sum is σ = 135514508976. Its totient is φ = 77117360000.

The previous prime is 102421504357. The next prime is 102421504387. The reversal of 102421504375 is 573405124201.

It is not a de Polignac number, because 102421504375 - 2⁷ = 102421504247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102421504375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4809211 + ... + 4830460.

Almost surely, 2^102421504375 is an apocalyptic number.

102421504375 is a deficient number, since it is larger than the sum of its proper divisors (33093004601).

102421504375 is an frugal number, since it uses more digits than its factorization.

102421504375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9639708 (or 9639693 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 102421504375 its reverse (573405124201), we get a palindrome (675826628576).

The spelling of 102421504375 in words is "one hundred two billion, four hundred twenty-one million, five hundred four thousand, three hundred seventy-five".