23441021 has 2 divisors, whose sum is σ = 23441022. Its totient is φ = 23441020.

The previous prime is 23440987. The next prime is 23441023. The reversal of 23441021 is 12014432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21724921 + 1716100 = 4661^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 23441021 - 2¹⁸ = 23178877 is a prime.

Together with 23441023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23441023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720510 + 11720511.

It is an arithmetic number, because the mean of its divisors is an integer number (11720511).

Almost surely, 2^23441021 is an apocalyptic number.

It is an amenable number.

23441021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23441021 is an equidigital number, since it uses as much as digits as its factorization.

23441021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 23441021 is about 4841.5928164190. The cubic root of 23441021 is about 286.1928907256.

Adding to 23441021 its reverse (12014432), we get a palindrome (35455453).

The spelling of 23441021 in words is "twenty-three million, four hundred forty-one thousand, twenty-one".