31033718984131 has 2 divisors, whose sum is σ = 31033718984132. Its totient is φ = 31033718984130.

The previous prime is 31033718984129. The next prime is 31033718984141. The reversal of 31033718984131 is 13148981733013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31033718984131 - 2¹ = 31033718984129 is a prime.

It is a super-2 number, since 2×31033718984131² (a number of 28 digits) contains 22 as substring.

Together with 31033718984129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31033718984101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516859492065 + 15516859492066.

It is an arithmetic number, because the mean of its divisors is an integer number (15516859492066).

Almost surely, 2^{31033718984131} is an apocalyptic number.

31033718984131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033718984131 is an equidigital number, since it uses as much as digits as its factorization.

31033718984131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 31033718984131 in words is "thirty-one trillion, thirty-three billion, seven hundred eighteen million, nine hundred eighty-four thousand, one hundred thirty-one".