31013301113131 has 4 divisors (see below), whose sum is σ = 31538950284600. Its totient is φ = 30487651941664.

The previous prime is 31013301113117. The next prime is 31013301113149. The reversal of 31013301113131 is 13131110331013.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31013301113131 - 2⁵ = 31013301113099 is a prime.

It is a super-2 number, since 2×31013301113131² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31013311113131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262824585646 + ... + 262824585763.

It is an arithmetic number, because the mean of its divisors is an integer number (7884737571150).

Almost surely, 2^{31013301113131} is an apocalyptic number.

31013301113131 is a deficient number, since it is larger than the sum of its proper divisors (525649171469).

31013301113131 is an equidigital number, since it uses as much as digits as its factorization.

31013301113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525649171468.

The product of its (nonzero) digits is 243, while the sum is 22.

Adding to 31013301113131 its reverse (13131110331013), we get a palindrome (44144411444144).

The spelling of 31013301113131 in words is "thirty-one trillion, thirteen billion, three hundred one million, one hundred thirteen thousand, one hundred thirty-one".