631346245017431 has 2 divisors, whose sum is σ = 631346245017432. Its totient is φ = 631346245017430.

The previous prime is 631346245017427. The next prime is 631346245017451. The reversal of 631346245017431 is 134710542643136.

631346245017431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 631346245017431 - 2² = 631346245017427 is a prime.

It is a super-2 number, since 2×631346245017431² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 631346245017431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631346245017451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315673122508715 + 315673122508716.

It is an arithmetic number, because the mean of its divisors is an integer number (315673122508716).

Almost surely, 2^{631346245017431} is an apocalyptic number.

631346245017431 is a deficient number, since it is larger than the sum of its proper divisors (1).

631346245017431 is an equidigital number, since it uses as much as digits as its factorization.

631346245017431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 631346245017431 in words is "six hundred thirty-one trillion, three hundred forty-six billion, two hundred forty-five million, seventeen thousand, four hundred thirty-one".