102312203031 has 32 divisors (see below), whose sum is σ = 152966246400. Its totient is φ = 67583898720.

The previous prime is 102312203023. The next prime is 102312203033. The reversal of 102312203031 is 130302213201.

It is not a de Polignac number, because 102312203031 - 2³ = 102312203023 is a prime.

It is a super-2 number, since 2×102312203031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102312202995 and 102312203013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312203033) 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, 1488186 + ... + 1555416.

It is an arithmetic number, because the mean of its divisors is an integer number (4780195200).

Almost surely, 2^102312203031 is an apocalyptic number.

102312203031 is a deficient number, since it is larger than the sum of its proper divisors (50654043369).

102312203031 is a wasteful number, since it uses less digits than its factorization.

102312203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67756 (or 67750 counting only the distinct ones).

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

Adding to 102312203031 its reverse (130302213201), we get a palindrome (232614416232).

The spelling of 102312203031 in words is "one hundred two billion, three hundred twelve million, two hundred three thousand, thirty-one".