23054021 has 2 divisors, whose sum is σ = 23054022. Its totient is φ = 23054020.

The previous prime is 23053991. The next prime is 23054033. The reversal of 23054021 is 12045032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22905796 + 148225 = 4786^2 + 385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23054021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23054041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11527010 + 11527011.

It is an arithmetic number, because the mean of its divisors is an integer number (11527011).

Almost surely, 2^23054021 is an apocalyptic number.

It is an amenable number.

23054021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23054021 is an equidigital number, since it uses as much as digits as its factorization.

23054021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 23054021 is about 4801.4602987008. The cubic root of 23054021 is about 284.6091739519.

Adding to 23054021 its reverse (12045032), we get a palindrome (35099053).

The spelling of 23054021 in words is "twenty-three million, fifty-four thousand, twenty-one".