31101012313 has 12 divisors (see below), whose sum is σ = 36227727120. Its totient is φ = 26621906472.

The previous prime is 31101012311. The next prime is 31101012359. The reversal of 31101012313 is 31321010113.

It is not a de Polignac number, because 31101012313 - 2¹ = 31101012311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31101012311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393231 + ... + 465652.

It is an arithmetic number, because the mean of its divisors is an integer number (3018977260).

Almost surely, 2^31101012313 is an apocalyptic number.

It is an amenable number.

31101012313 is a deficient number, since it is larger than the sum of its proper divisors (5126714807).

31101012313 is an equidigital number, since it uses as much as digits as its factorization.

31101012313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859636 (or 859629 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31101012313 its reverse (31321010113), we get a palindrome (62422022426).

It can be divided in two parts, 311010 and 12313, that added together give a palindrome (323323).

The spelling of 31101012313 in words is "thirty-one billion, one hundred one million, twelve thousand, three hundred thirteen".