404313232231 has 2 divisors, whose sum is σ = 404313232232. Its totient is φ = 404313232230.

The previous prime is 404313232229. The next prime is 404313232247. The reversal of 404313232231 is 132232313404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404313232231 - 2¹ = 404313232229 is a prime.

It is a super-2 number, since 2×404313232231² (a number of 24 digits) contains 22 as substring.

Together with 404313232229, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 404313232231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404313235231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202156616115 + 202156616116.

It is an arithmetic number, because the mean of its divisors is an integer number (202156616116).

Almost surely, 2^404313232231 is an apocalyptic number.

404313232231 is a deficient number, since it is larger than the sum of its proper divisors (1).

404313232231 is an equidigital number, since it uses as much as digits as its factorization.

404313232231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 404313232231 its reverse (132232313404), we get a palindrome (536545545635).

The spelling of 404313232231 in words is "four hundred four billion, three hundred thirteen million, two hundred thirty-two thousand, two hundred thirty-one".