103312112031 has 6 divisors (see below), whose sum is σ = 149228606280. Its totient is φ = 68874741348.

The previous prime is 103312112027. The next prime is 103312112047. The reversal of 103312112031 is 130211213301.

It is not a de Polignac number, because 103312112031 - 2² = 103312112027 is a prime.

It is a super-2 number, since 2×103312112031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103312111995 and 103312112013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312112131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5739561771 + ... + 5739561788.

It is an arithmetic number, because the mean of its divisors is an integer number (24871434380).

Almost surely, 2^103312112031 is an apocalyptic number.

103312112031 is a deficient number, since it is larger than the sum of its proper divisors (45916494249).

103312112031 is a wasteful number, since it uses less digits than its factorization.

103312112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11479123565 (or 11479123562 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 103312112031 its reverse (130211213301), we get a palindrome (233523325332).

The spelling of 103312112031 in words is "one hundred three billion, three hundred twelve million, one hundred twelve thousand, thirty-one".