31312230012103 has 8 divisors (see below), whose sum is σ = 31843900904400. Its totient is φ = 30780590957568.

The previous prime is 31312230012061. The next prime is 31312230012131. The reversal of 31312230012103 is 30121003221313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31312230012103 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 (31312230072103) 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, 5971576 + ... + 9913837.

It is an arithmetic number, because the mean of its divisors is an integer number (3980487613050).

Almost surely, 2^{31312230012103} is an apocalyptic number.

31312230012103 is a deficient number, since it is larger than the sum of its proper divisors (531670892297).

31312230012103 is a wasteful number, since it uses less digits than its factorization.

31312230012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15918881.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31312230012103 its reverse (30121003221313), we get a palindrome (61433233233416).

The spelling of 31312230012103 in words is "thirty-one trillion, three hundred twelve billion, two hundred thirty million, twelve thousand, one hundred three".