312332421 has 4 divisors (see below), whose sum is σ = 416443232. Its totient is φ = 208221612.

The previous prime is 312332411. The next prime is 312332453. The reversal of 312332421 is 124233213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 312332421 - 2⁵ = 312332389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312332411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52055401 + ... + 52055406.

It is an arithmetic number, because the mean of its divisors is an integer number (104110808).

Almost surely, 2^312332421 is an apocalyptic number.

It is an amenable number.

312332421 is a deficient number, since it is larger than the sum of its proper divisors (104110811).

312332421 is a wasteful number, since it uses less digits than its factorization.

312332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104110810.

The product of its digits is 864, while the sum is 21.

The square root of 312332421 is about 17672.9290441624. The cubic root of 312332421 is about 678.4830812890.

Adding to 312332421 its reverse (124233213), we get a palindrome (436565634).

The spelling of 312332421 in words is "three hundred twelve million, three hundred thirty-two thousand, four hundred twenty-one".