102431072238 has 32 divisors (see below), whose sum is σ = 224824239360. Its totient is φ = 30853848960.

The previous prime is 102431072221. The next prime is 102431072257. The reversal of 102431072238 is 832270134201.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 102431072199 and 102431072208.

It is a congruent number.

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, 4635643 + ... + 4657686.

It is an arithmetic number, because the mean of its divisors is an integer number (7025757480).

Almost surely, 2^102431072238 is an apocalyptic number.

102431072238 is an abundant number, since it is smaller than the sum of its proper divisors (122393167122).

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

102431072238 is a wasteful number, since it uses less digits than its factorization.

102431072238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9293512.

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 102431072238 in words is "one hundred two billion, four hundred thirty-one million, seventy-two thousand, two hundred thirty-eight".