23042321 has 2 divisors, whose sum is σ = 23042322. Its totient is φ = 23042320.

The previous prime is 23042311. The next prime is 23042329. The reversal of 23042321 is 12324032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16483600 + 6558721 = 4060^2 + 2561^2 .

It is a cyclic number.

It is not a de Polignac number, because 23042321 - 2¹⁰ = 23041297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23042321.

It is not a weakly prime, because it can be changed into another prime (23042329) 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 as a sum of consecutive naturals, namely, 11521160 + 11521161.

It is an arithmetic number, because the mean of its divisors is an integer number (11521161).

Almost surely, 2^23042321 is an apocalyptic number.

It is an amenable number.

23042321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23042321 is an equidigital number, since it uses as much as digits as its factorization.

23042321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23042321 is about 4800.2417647448. The cubic root of 23042321 is about 284.5610190724.

Adding to 23042321 its reverse (12324032), we get a palindrome (35366353).

The spelling of 23042321 in words is "twenty-three million, forty-two thousand, three hundred twenty-one".