31573712041 has 2 divisors, whose sum is σ = 31573712042. Its totient is φ = 31573712040.

The previous prime is 31573712033. The next prime is 31573712069. The reversal of 31573712041 is 14021737513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29811475600 + 1762236441 = 172660^2 + 41979^2 .

It is a cyclic number.

It is not a de Polignac number, because 31573712041 - 2³ = 31573712033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31573711988 and 31573712006.

It is not a weakly prime, because it can be changed into another prime (31573712741) 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, 15786856020 + 15786856021.

It is an arithmetic number, because the mean of its divisors is an integer number (15786856021).

Almost surely, 2^31573712041 is an apocalyptic number.

It is an amenable number.

31573712041 is a deficient number, since it is larger than the sum of its proper divisors (1).

31573712041 is an equidigital number, since it uses as much as digits as its factorization.

31573712041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The spelling of 31573712041 in words is "thirty-one billion, five hundred seventy-three million, seven hundred twelve thousand, forty-one".