102631023 has 32 divisors (see below), whose sum is σ = 175633920. Its totient is φ = 58538880.

The previous prime is 102630943. The next prime is 102631043. The reversal of 102631023 is 320136201.

102631023 is a `hidden beast` number, since 10 + 2 + 631 + 0 + 23 = 666.

It is not a de Polignac number, because 102631023 - 2⁸ = 102630767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102630987 and 102631005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102631043) 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, 5115 + ... + 15212.

It is an arithmetic number, because the mean of its divisors is an integer number (5488560).

Almost surely, 2^102631023 is an apocalyptic number.

102631023 is a deficient number, since it is larger than the sum of its proper divisors (73002897).

102631023 is a wasteful number, since it uses less digits than its factorization.

102631023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20364 (or 20358 counting only the distinct ones).

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

The square root of 102631023 is about 10130.6970638747. The cubic root of 102631023 is about 468.1944047699.

Adding to 102631023 its reverse (320136201), we get a palindrome (422767224).

The spelling of 102631023 in words is "one hundred two million, six hundred thirty-one thousand, twenty-three".