23313421 has 4 divisors (see below), whose sum is σ = 24327072. Its totient is φ = 22299772.

The previous prime is 23313413. The next prime is 23313431. The reversal of 23313421 is 12431332.

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 a cyclic number.

It is not a de Polignac number, because 23313421 - 2³ = 23313413 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 (23313431) 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, 506791 + ... + 506836.

It is an arithmetic number, because the mean of its divisors is an integer number (6081768).

Almost surely, 2^23313421 is an apocalyptic number.

It is an amenable number.

23313421 is a deficient number, since it is larger than the sum of its proper divisors (1013651).

23313421 is a wasteful number, since it uses less digits than its factorization.

23313421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013650.

The product of its digits is 432, while the sum is 19.

The square root of 23313421 is about 4828.3973531597. The cubic root of 23313421 is about 285.6726534935.

Adding to 23313421 its reverse (12431332), we get a palindrome (35744753).

The spelling of 23313421 in words is "twenty-three million, three hundred thirteen thousand, four hundred twenty-one".