102431031023 has 2 divisors, whose sum is σ = 102431031024. Its totient is φ = 102431031022.

The previous prime is 102431031019. The next prime is 102431031097. The reversal of 102431031023 is 320130134201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102431031023 - 2² = 102431031019 is a prime.

It is a super-2 number, since 2×102431031023² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102431030986 and 102431031004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102431081023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51215515511 + 51215515512.

It is an arithmetic number, because the mean of its divisors is an integer number (51215515512).

Almost surely, 2^102431031023 is an apocalyptic number.

102431031023 is a deficient number, since it is larger than the sum of its proper divisors (1).

102431031023 is an equidigital number, since it uses as much as digits as its factorization.

102431031023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 102431031023 its reverse (320130134201), we get a palindrome (422561165224).

The spelling of 102431031023 in words is "one hundred two billion, four hundred thirty-one million, thirty-one thousand, twenty-three".