23113009 has 2 divisors, whose sum is σ = 23113010. Its totient is φ = 23113008.

The previous prime is 23113007. The next prime is 23113019. The reversal of 23113009 is 90031132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 2890000 = 4497^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 23113009 - 2¹ = 23113007 is a prime.

It is a super-2 number, since 2×23113009² = 1068422370068162, which contains 22 as substring.

Together with 23113007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23113001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11556504 + 11556505.

It is an arithmetic number, because the mean of its divisors is an integer number (11556505).

Almost surely, 2^23113009 is an apocalyptic number.

It is an amenable number.

23113009 is a deficient number, since it is larger than the sum of its proper divisors (1).

23113009 is an equidigital number, since it uses as much as digits as its factorization.

23113009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 23113009 is about 4807.5990889424. The cubic root of 23113009 is about 284.8517090454.

The spelling of 23113009 in words is "twenty-three million, one hundred thirteen thousand, nine".