23321121 has 8 divisors (see below), whose sum is σ = 31170720. Its totient is φ = 15509472.

The previous prime is 23321119. The next prime is 23321141. The reversal of 23321121 is 12112332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23321121 - 2¹ = 23321119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23321121.

It is not an unprimeable number, because it can be changed into a prime (23321101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8020 + ... + 10533.

It is an arithmetic number, because the mean of its divisors is an integer number (3896340).

Almost surely, 2^23321121 is an apocalyptic number.

It is an amenable number.

23321121 is a deficient number, since it is larger than the sum of its proper divisors (7849599).

23321121 is a wasteful number, since it uses less digits than its factorization.

23321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18975.

The product of its digits is 72, while the sum is 15.

The square root of 23321121 is about 4829.1946533558. The cubic root of 23321121 is about 285.7041008631.

Adding to 23321121 its reverse (12112332), we get a palindrome (35433453).

The spelling of 23321121 in words is "twenty-three million, three hundred twenty-one thousand, one hundred twenty-one".