31232167297 has 2 divisors, whose sum is σ = 31232167298. Its totient is φ = 31232167296.

The previous prime is 31232167261. The next prime is 31232167303. The reversal of 31232167297 is 79276123213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31077811521 + 154355776 = 176289^2 + 12424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31232167297 is a prime.

It is not a weakly prime, because it can be changed into another prime (31232167397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616083648 + 15616083649.

It is an arithmetic number, because the mean of its divisors is an integer number (15616083649).

Almost surely, 2^31232167297 is an apocalyptic number.

It is an amenable number.

31232167297 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232167297 is an equidigital number, since it uses as much as digits as its factorization.

31232167297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The spelling of 31232167297 in words is "thirty-one billion, two hundred thirty-two million, one hundred sixty-seven thousand, two hundred ninety-seven".