23004013 has 2 divisors, whose sum is σ = 23004014. Its totient is φ = 23004012.

The previous prime is 23003977. The next prime is 23004017. The reversal of 23004013 is 31040032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19386409 + 3617604 = 4403^2 + 1902^2 .

It is a cyclic number.

It is not a de Polignac number, because 23004013 - 2²¹ = 20906861 is a prime.

It is a super-2 number, since 2×23004013² = 1058369228208338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23003984 and 23004002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23004017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11502006 + 11502007.

It is an arithmetic number, because the mean of its divisors is an integer number (11502007).

Almost surely, 2^23004013 is an apocalyptic number.

It is an amenable number.

23004013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23004013 is an equidigital number, since it uses as much as digits as its factorization.

23004013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23004013 is about 4796.2498892364. The cubic root of 23004013 is about 284.4032367888.

Adding to 23004013 its reverse (31040032), we get a palindrome (54044045).

The spelling of 23004013 in words is "twenty-three million, four thousand, thirteen".