31013853280493 has 2 divisors, whose sum is σ = 31013853280494. Its totient is φ = 31013853280492.

The previous prime is 31013853280481. The next prime is 31013853280601. The reversal of 31013853280493 is 39408235831013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30678106043524 + 335747236969 = 5538782^2 + 579437^2 .

It is a cyclic number.

It is not a de Polignac number, because 31013853280493 - 2³⁸ = 30738975373549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31013853280463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506926640246 + 15506926640247.

It is an arithmetic number, because the mean of its divisors is an integer number (15506926640247).

Almost surely, 2^{31013853280493} is an apocalyptic number.

It is an amenable number.

31013853280493 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013853280493 is an equidigital number, since it uses as much as digits as its factorization.

31013853280493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 31013853280493 in words is "thirty-one trillion, thirteen billion, eight hundred fifty-three million, two hundred eighty thousand, four hundred ninety-three".