31013043057 has 6 divisors (see below), whose sum is σ = 44796617762. Its totient is φ = 20675362032.

The previous prime is 31013043011. The next prime is 31013043143. The reversal of 31013043057 is 75034031013.

It can be written as a sum of positive squares in only one way, i.e., 28682470881 + 2330572176 = 169359^2 + 48276^2 .

It is not a de Polignac number, because 31013043057 - 2⁶ = 31013042993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31013043057.

It is not an unprimeable number, because it can be changed into a prime (31013043007) 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 in 5 ways as a sum of consecutive naturals, for example, 1722946828 + ... + 1722946845.

Almost surely, 2^31013043057 is an apocalyptic number.

It is an amenable number.

31013043057 is a deficient number, since it is larger than the sum of its proper divisors (13783574705).

31013043057 is a wasteful number, since it uses less digits than its factorization.

31013043057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445893679 (or 3445893676 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The spelling of 31013043057 in words is "thirty-one billion, thirteen million, forty-three thousand, fifty-seven".