102203231031 has 32 divisors (see below), whose sum is σ = 165194749440. Its totient is φ = 61934673600.

The previous prime is 102203231023. The next prime is 102203231033. The reversal of 102203231031 is 130132302201.

It is not a de Polignac number, because 102203231031 - 2³ = 102203231023 is a prime.

It is a super-2 number, since 2×102203231031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102203230995 and 102203231013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102203231033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5428971 + ... + 5447763.

It is an arithmetic number, because the mean of its divisors is an integer number (5162335920).

Almost surely, 2^102203231031 is an apocalyptic number.

102203231031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102203231031 is a deficient number, since it is larger than the sum of its proper divisors (62991518409).

102203231031 is a wasteful number, since it uses less digits than its factorization.

102203231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37124 (or 37118 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 102203231031 its reverse (130132302201), we get a palindrome (232335533232).

The spelling of 102203231031 in words is "one hundred two billion, two hundred three million, two hundred thirty-one thousand, thirty-one".