13312031103 has 48 divisors (see below), whose sum is σ = 23780230656. Its totient is φ = 7276119840.

The previous prime is 13312031093. The next prime is 13312031119. The reversal of 13312031103 is 30113021331.

It is a happy number.

13312031103 is a `hidden beast` number, since 1 + 331 + 20 + 311 + 0 + 3 = 666.

It is not a de Polignac number, because 13312031103 - 2⁵ = 13312031071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312031303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131008 + ... + 209253.

It is an arithmetic number, because the mean of its divisors is an integer number (495421472).

Almost surely, 2^13312031103 is an apocalyptic number.

13312031103 is a deficient number, since it is larger than the sum of its proper divisors (10468199553).

13312031103 is an equidigital number, since it uses as much as digits as its factorization.

13312031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340306 (or 340294 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13312031103 its reverse (30113021331), we get a palindrome (43425052434).

The spelling of 13312031103 in words is "thirteen billion, three hundred twelve million, thirty-one thousand, one hundred three".