23323121 has 2 divisors, whose sum is σ = 23323122. Its totient is φ = 23323120.

The previous prime is 23323049. The next prime is 23323147. The reversal of 23323121 is 12132332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22848400 + 474721 = 4780^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 23323121 - 2²² = 19128817 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23323121.

It is not a weakly prime, because it can be changed into another prime (23322121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11661560 + 11661561.

It is an arithmetic number, because the mean of its divisors is an integer number (11661561).

Almost surely, 2^23323121 is an apocalyptic number.

It is an amenable number.

23323121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23323121 is an equidigital number, since it uses as much as digits as its factorization.

23323121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 17.

The square root of 23323121 is about 4829.4017227810. The cubic root of 23323121 is about 285.7122678786.

Adding to 23323121 its reverse (12132332), we get a palindrome (35455453).

The spelling of 23323121 in words is "twenty-three million, three hundred twenty-three thousand, one hundred twenty-one".