31300131311 has 2 divisors, whose sum is σ = 31300131312. Its totient is φ = 31300131310.

The previous prime is 31300131301. The next prime is 31300131319. The reversal of 31300131311 is 11313100313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31300131311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31300131311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31300131319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650065655 + 15650065656.

It is an arithmetic number, because the mean of its divisors is an integer number (15650065656).

Almost surely, 2^31300131311 is an apocalyptic number.

31300131311 is a deficient number, since it is larger than the sum of its proper divisors (1).

31300131311 is an equidigital number, since it uses as much as digits as its factorization.

31300131311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 31300131311 its reverse (11313100313), we get a palindrome (42613231624).

The spelling of 31300131311 in words is "thirty-one billion, three hundred million, one hundred thirty-one thousand, three hundred eleven".