102550312431 has 72 divisors (see below), whose sum is σ = 173187705600. Its totient is φ = 58303476000.

The previous prime is 102550312399. The next prime is 102550312477. The reversal of 102550312431 is 134213055201.

102550312431 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 503 + 124 + 31 = 666.

It is not a de Polignac number, because 102550312431 - 2⁵ = 102550312399 is a prime.

It is a super-2 number, since 2×102550312431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102550312395 and 102550312404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102550312481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 136551306 + ... + 136552056.

It is an arithmetic number, because the mean of its divisors is an integer number (2405384800).

Almost surely, 2^102550312431 is an apocalyptic number.

102550312431 is a deficient number, since it is larger than the sum of its proper divisors (70637393169).

102550312431 is a wasteful number, since it uses less digits than its factorization.

102550312431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 102550312431 its reverse (134213055201), we get a palindrome (236763367632).

The spelling of 102550312431 in words is "one hundred two billion, five hundred fifty million, three hundred twelve thousand, four hundred thirty-one".