31310312113311 has 128 divisors (see below), whose sum is σ = 52452078114816. Its totient is φ = 16139562516480.

The previous prime is 31310312113253. The next prime is 31310312113351. The reversal of 31310312113311 is 11331121301313.

It is not a de Polignac number, because 31310312113311 - 2⁷ = 31310312113183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310312113351) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26245022131 + ... + 26245023323.

It is an arithmetic number, because the mean of its divisors is an integer number (409781860272).

Almost surely, 2^{31310312113311} is an apocalyptic number.

31310312113311 is a deficient number, since it is larger than the sum of its proper divisors (21141766001505).

31310312113311 is a wasteful number, since it uses less digits than its factorization.

31310312113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 31310312113311 its reverse (11331121301313), we get a palindrome (42641433414624).

The spelling of 31310312113311 in words is "thirty-one trillion, three hundred ten billion, three hundred twelve million, one hundred thirteen thousand, three hundred eleven".