2031313349257 has 2 divisors, whose sum is σ = 2031313349258. Its totient is φ = 2031313349256.

The previous prime is 2031313349237. The next prime is 2031313349269. The reversal of 2031313349257 is 7529433131302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1522408031881 + 508905317376 = 1233859^2 + 713376^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031313349257 - 2¹⁹ = 2031312824969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2031313349207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015656674628 + 1015656674629.

It is an arithmetic number, because the mean of its divisors is an integer number (1015656674629).

Almost surely, 2^{2031313349257} is an apocalyptic number.

It is an amenable number.

2031313349257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031313349257 is an equidigital number, since it uses as much as digits as its factorization.

2031313349257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 2031313349257 in words is "two trillion, thirty-one billion, three hundred thirteen million, three hundred forty-nine thousand, two hundred fifty-seven".