102312003031 has 4 divisors (see below), whose sum is σ = 116928003472. Its totient is φ = 87696002592.

The previous prime is 102312003019. The next prime is 102312003047. The reversal of 102312003031 is 130300213201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102312003031 - 2⁵ = 102312002999 is a prime.

It is a super-2 number, since 2×102312003031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102312002996 and 102312003014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312003071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7308000210 + ... + 7308000223.

It is an arithmetic number, because the mean of its divisors is an integer number (29232000868).

Almost surely, 2^102312003031 is an apocalyptic number.

102312003031 is a deficient number, since it is larger than the sum of its proper divisors (14616000441).

102312003031 is an equidigital number, since it uses as much as digits as its factorization.

102312003031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14616000440.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 102312003031 its reverse (130300213201), we get a palindrome (232612216232).

The spelling of 102312003031 in words is "one hundred two billion, three hundred twelve million, three thousand, thirty-one".