31147704041 has 2 divisors, whose sum is σ = 31147704042. Its totient is φ = 31147704040.

The previous prime is 31147703947. The next prime is 31147704053. The reversal of 31147704041 is 14040774113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27863955625 + 3283748416 = 166925^2 + 57304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31147704041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31147703989 and 31147704007.

It is not a weakly prime, because it can be changed into another prime (31147704061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15573852020 + 15573852021.

It is an arithmetic number, because the mean of its divisors is an integer number (15573852021).

Almost surely, 2^31147704041 is an apocalyptic number.

It is an amenable number.

31147704041 is a deficient number, since it is larger than the sum of its proper divisors (1).

31147704041 is an equidigital number, since it uses as much as digits as its factorization.

31147704041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The spelling of 31147704041 in words is "thirty-one billion, one hundred forty-seven million, seven hundred four thousand, forty-one".