31352225304971 has 2 divisors, whose sum is σ = 31352225304972. Its totient is φ = 31352225304970.

The previous prime is 31352225304929. The next prime is 31352225305021. The reversal of 31352225304971 is 17940352225313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31352225304971 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (31352222304971) 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, 15676112652485 + 15676112652486.

It is an arithmetic number, because the mean of its divisors is an integer number (15676112652486).

Almost surely, 2^{31352225304971} is an apocalyptic number.

31352225304971 is a deficient number, since it is larger than the sum of its proper divisors (1).

31352225304971 is an equidigital number, since it uses as much as digits as its factorization.

31352225304971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 31352225304971 in words is "thirty-one trillion, three hundred fifty-two billion, two hundred twenty-five million, three hundred four thousand, nine hundred seventy-one".