31052013457 has 2 divisors, whose sum is σ = 31052013458. Its totient is φ = 31052013456.

The previous prime is 31052013449. The next prime is 31052013463. The reversal of 31052013457 is 75431025013.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21517662721 + 9534350736 = 146689^2 + 97644^2 .

It is a cyclic number.

It is not a de Polignac number, because 31052013457 - 2³ = 31052013449 is a prime.

It is not a weakly prime, because it can be changed into another prime (31052014457) 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, 15526006728 + 15526006729.

It is an arithmetic number, because the mean of its divisors is an integer number (15526006729).

Almost surely, 2^31052013457 is an apocalyptic number.

It is an amenable number.

31052013457 is a deficient number, since it is larger than the sum of its proper divisors (1).

31052013457 is an equidigital number, since it uses as much as digits as its factorization.

31052013457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 31052013457 in words is "thirty-one billion, fifty-two million, thirteen thousand, four hundred fifty-seven".