23303122421 has 4 divisors (see below), whose sum is σ = 23529366432. Its totient is φ = 23076878412.

The previous prime is 23303122417. The next prime is 23303122439. The reversal of 23303122421 is 12422130332.

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 23303122421 - 2² = 23303122417 is a prime.

It is a super-2 number, since 2×23303122421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23303122471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113121851 + ... + 113122056.

It is an arithmetic number, because the mean of its divisors is an integer number (5882341608).

Almost surely, 2^23303122421 is an apocalyptic number.

It is an amenable number.

23303122421 is a deficient number, since it is larger than the sum of its proper divisors (226244011).

23303122421 is a wasteful number, since it uses less digits than its factorization.

23303122421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226244010.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23303122421 its reverse (12422130332), we get a palindrome (35725252753).

The spelling of 23303122421 in words is "twenty-three billion, three hundred three million, one hundred twenty-two thousand, four hundred twenty-one".