31312101330311 has 2 divisors, whose sum is σ = 31312101330312. Its totient is φ = 31312101330310.

The previous prime is 31312101330281. The next prime is 31312101330313. The reversal of 31312101330311 is 11303310121313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31312101330311 - 2³⁰ = 31311027588487 is a prime.

Together with 31312101330313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31312101330313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656050665155 + 15656050665156.

It is an arithmetic number, because the mean of its divisors is an integer number (15656050665156).

Almost surely, 2^{31312101330311} is an apocalyptic number.

31312101330311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312101330311 is an equidigital number, since it uses as much as digits as its factorization.

31312101330311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 31312101330311 its reverse (11303310121313), we get a palindrome (42615411451624).

The spelling of 31312101330311 in words is "thirty-one trillion, three hundred twelve billion, one hundred one million, three hundred thirty thousand, three hundred eleven".