631290741984031 has 2 divisors, whose sum is σ = 631290741984032. Its totient is φ = 631290741984030.

The previous prime is 631290741983953. The next prime is 631290741984047. The reversal of 631290741984031 is 130489147092136.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 631290741984031 - 2¹⁹ = 631290741459743 is a prime.

It is a super-2 number, since 2×631290741984031² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631290741984061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315645370992015 + 315645370992016.

It is an arithmetic number, because the mean of its divisors is an integer number (315645370992016).

Almost surely, 2^{631290741984031} is an apocalyptic number.

631290741984031 is a deficient number, since it is larger than the sum of its proper divisors (1).

631290741984031 is an equidigital number, since it uses as much as digits as its factorization.

631290741984031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 631290741984031 in words is "six hundred thirty-one trillion, two hundred ninety billion, seven hundred forty-one million, nine hundred eighty-four thousand, thirty-one".