423232631 has 4 divisors (see below), whose sum is σ = 427595952. Its totient is φ = 418869312.

The previous prime is 423232577. The next prime is 423232651. The reversal of 423232631 is 136232324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423232631 - 2⁶ = 423232567 is a prime.

It is a super-2 number, since 2×423232631² = 358251719886364322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423232631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423232651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2181515 + ... + 2181708.

It is an arithmetic number, because the mean of its divisors is an integer number (106898988).

Almost surely, 2^423232631 is an apocalyptic number.

423232631 is a deficient number, since it is larger than the sum of its proper divisors (4363321).

423232631 is an equidigital number, since it uses as much as digits as its factorization.

423232631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363320.

The product of its digits is 5184, while the sum is 26.

The square root of 423232631 is about 20572.6184769951. The cubic root of 423232631 is about 750.8036606060.

Adding to 423232631 its reverse (136232324), we get a palindrome (559464955).

It can be divided in two parts, 4232 and 32631, that added together give a palindrome (36863).

The spelling of 423232631 in words is "four hundred twenty-three million, two hundred thirty-two thousand, six hundred thirty-one".