423446131 has 2 divisors, whose sum is σ = 423446132. Its totient is φ = 423446130.

The previous prime is 423446117. The next prime is 423446173. The reversal of 423446131 is 131644324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423446131 - 2⁹ = 423445619 is a prime.

It is a super-2 number, since 2×423446131² = 358613251717738322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423446131.

It is not a weakly prime, because it can be changed into another prime (423446531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211723065 + 211723066.

It is an arithmetic number, because the mean of its divisors is an integer number (211723066).

Almost surely, 2^423446131 is an apocalyptic number.

423446131 is a deficient number, since it is larger than the sum of its proper divisors (1).

423446131 is an equidigital number, since it uses as much as digits as its factorization.

423446131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

The square root of 423446131 is about 20577.8067587389. The cubic root of 423446131 is about 750.9298871958.

The spelling of 423446131 in words is "four hundred twenty-three million, four hundred forty-six thousand, one hundred thirty-one".