31312132103 has 8 divisors (see below), whose sum is σ = 36113600160. Its totient is φ = 26592740640.

The previous prime is 31312132037. The next prime is 31312132109. The reversal of 31312132103 is 30123121313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31312132103 - 2²⁶ = 31245023239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312132109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20518328 + ... + 20519853.

It is an arithmetic number, because the mean of its divisors is an integer number (4514200020).

Almost surely, 2^31312132103 is an apocalyptic number.

31312132103 is a deficient number, since it is larger than the sum of its proper divisors (4801468057).

31312132103 is a wasteful number, since it uses less digits than its factorization.

31312132103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41038297.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31312132103 its reverse (30123121313), we get a palindrome (61435253416).

The spelling of 31312132103 in words is "thirty-one billion, three hundred twelve million, one hundred thirty-two thousand, one hundred three".