313231012103 has 16 divisors (see below), whose sum is σ = 322336705152. Its totient is φ = 304197120000.

The previous prime is 313231012091. The next prime is 313231012109. The reversal of 313231012103 is 301210132313.

It is a cyclic number.

It is not a de Polignac number, because 313231012103 - 2³⁸ = 38353105159 is a prime.

It is a super-2 number, since 2×313231012103² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313231012109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13332575 + ... + 13356047.

It is an arithmetic number, because the mean of its divisors is an integer number (20146044072).

Almost surely, 2^313231012103 is an apocalyptic number.

313231012103 is a deficient number, since it is larger than the sum of its proper divisors (9105693049).

313231012103 is a wasteful number, since it uses less digits than its factorization.

313231012103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24986.

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

Adding to 313231012103 its reverse (301210132313), we get a palindrome (614441144416).

It can be divided in two parts, 3132310 and 12103, that added together give a palindrome (3144413).

The spelling of 313231012103 in words is "three hundred thirteen billion, two hundred thirty-one million, twelve thousand, one hundred three".