31114814509 has 2 divisors, whose sum is σ = 31114814510. Its totient is φ = 31114814508.

The previous prime is 31114814501. The next prime is 31114814527. The reversal of 31114814509 is 90541841113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31027765609 + 87048900 = 176147^2 + 9330^2 .

It is a cyclic number.

It is not a de Polignac number, because 31114814509 - 2³ = 31114814501 is a prime.

It is a super-2 number, since 2×31114814509² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31114814501) 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, 15557407254 + 15557407255.

It is an arithmetic number, because the mean of its divisors is an integer number (15557407255).

Almost surely, 2^31114814509 is an apocalyptic number.

It is an amenable number.

31114814509 is a deficient number, since it is larger than the sum of its proper divisors (1).

31114814509 is an equidigital number, since it uses as much as digits as its factorization.

31114814509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 31114814509 in words is "thirty-one billion, one hundred fourteen million, eight hundred fourteen thousand, five hundred nine".