31032313231057 has 2 divisors, whose sum is σ = 31032313231058. Its totient is φ = 31032313231056.

The previous prime is 31032313231013. The next prime is 31032313231061. The reversal of 31032313231057 is 75013231323013.

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., 24513232775056 + 6519080456001 = 4951084^2 + 2553249^2 .

It is a cyclic number.

It is not a de Polignac number, because 31032313231057 - 2¹¹ = 31032313229009 is a prime.

It is not a weakly prime, because it can be changed into another prime (31032313231067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516156615528 + 15516156615529.

It is an arithmetic number, because the mean of its divisors is an integer number (15516156615529).

Almost surely, 2^{31032313231057} is an apocalyptic number.

It is an amenable number.

31032313231057 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032313231057 is an equidigital number, since it uses as much as digits as its factorization.

31032313231057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 34.

The spelling of 31032313231057 in words is "thirty-one trillion, thirty-two billion, three hundred thirteen million, two hundred thirty-one thousand, fifty-seven".