31371311753 has 2 divisors, whose sum is σ = 31371311754. Its totient is φ = 31371311752.

The previous prime is 31371311723. The next prime is 31371311809. The reversal of 31371311753 is 35711317313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31022481424 + 348830329 = 176132^2 + 18677^2 .

It is a cyclic number.

It is not a de Polignac number, because 31371311753 - 2¹⁶ = 31371246217 is a prime.

It is a super-2 number, since 2×31371311753² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31371311723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15685655876 + 15685655877.

It is an arithmetic number, because the mean of its divisors is an integer number (15685655877).

Almost surely, 2^31371311753 is an apocalyptic number.

It is an amenable number.

31371311753 is a deficient number, since it is larger than the sum of its proper divisors (1).

31371311753 is an equidigital number, since it uses as much as digits as its factorization.

31371311753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19845, while the sum is 35.

The spelling of 31371311753 in words is "thirty-one billion, three hundred seventy-one million, three hundred eleven thousand, seven hundred fifty-three".