423899270831 has 2 divisors, whose sum is σ = 423899270832. Its totient is φ = 423899270830.

The previous prime is 423899270747. The next prime is 423899270843. The reversal of 423899270831 is 138072998324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423899270831 is a prime.

It is a super-2 number, since 2×423899270831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423899270131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211949635415 + 211949635416.

It is an arithmetic number, because the mean of its divisors is an integer number (211949635416).

Almost surely, 2^423899270831 is an apocalyptic number.

423899270831 is a deficient number, since it is larger than the sum of its proper divisors (1).

423899270831 is an equidigital number, since it uses as much as digits as its factorization.

423899270831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 423899270831 in words is "four hundred twenty-three billion, eight hundred ninety-nine million, two hundred seventy thousand, eight hundred thirty-one".