31313320113311 has 2 divisors, whose sum is σ = 31313320113312. Its totient is φ = 31313320113310.

The previous prime is 31313320113301. The next prime is 31313320113323. The reversal of 31313320113311 is 11331102331313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31313320113311 - 2⁶ = 31313320113247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31313320113301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656660056655 + 15656660056656.

It is an arithmetic number, because the mean of its divisors is an integer number (15656660056656).

Almost surely, 2^{31313320113311} is an apocalyptic number.

31313320113311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313320113311 is an equidigital number, since it uses as much as digits as its factorization.

31313320113311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 26.

Adding to 31313320113311 its reverse (11331102331313), we get a palindrome (42644422444624).

The spelling of 31313320113311 in words is "thirty-one trillion, three hundred thirteen billion, three hundred twenty million, one hundred thirteen thousand, three hundred eleven".