423631340566831 has 2 divisors, whose sum is σ = 423631340566832. Its totient is φ = 423631340566830.

The previous prime is 423631340566769. The next prime is 423631340566849. The reversal of 423631340566831 is 138665043136324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423631340566831 - 2⁷ = 423631340566703 is a prime.

It is a super-2 number, since 2×423631340566831² (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 (423631340561831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211815670283415 + 211815670283416.

It is an arithmetic number, because the mean of its divisors is an integer number (211815670283416).

Almost surely, 2^{423631340566831} is an apocalyptic number.

423631340566831 is a deficient number, since it is larger than the sum of its proper divisors (1).

423631340566831 is an equidigital number, since it uses as much as digits as its factorization.

423631340566831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22394880, while the sum is 55.

The spelling of 423631340566831 in words is "four hundred twenty-three trillion, six hundred thirty-one billion, three hundred forty million, five hundred sixty-six thousand, eight hundred thirty-one".