23424013 has 2 divisors, whose sum is σ = 23424014. Its totient is φ = 23424012.

The previous prime is 23423993. The next prime is 23424029. The reversal of 23424013 is 31042432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14768649 + 8655364 = 3843^2 + 2942^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23424013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23424043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11712006 + 11712007.

It is an arithmetic number, because the mean of its divisors is an integer number (11712007).

Almost surely, 2^23424013 is an apocalyptic number.

It is an amenable number.

23424013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23424013 is an equidigital number, since it uses as much as digits as its factorization.

23424013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23424013 is about 4839.8360509422. The cubic root of 23424013 is about 286.1236567332.

Adding to 23424013 its reverse (31042432), we get a palindrome (54466445).

The spelling of 23424013 in words is "twenty-three million, four hundred twenty-four thousand, thirteen".