23045511 has 4 divisors (see below), whose sum is σ = 30727352. Its totient is φ = 15363672.

The previous prime is 23045497. The next prime is 23045573. The reversal of 23045511 is 11554032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23045511 - 2⁵ = 23045479 is a prime.

It is a super-2 number, since 2×23045511² = 1062191154502242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3840916 + ... + 3840921.

It is an arithmetic number, because the mean of its divisors is an integer number (7681838).

Almost surely, 2^23045511 is an apocalyptic number.

23045511 is a deficient number, since it is larger than the sum of its proper divisors (7681841).

23045511 is an equidigital number, since it uses as much as digits as its factorization.

23045511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681840.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 23045511 is about 4800.5740281762. The cubic root of 23045511 is about 284.5741500957.

Adding to 23045511 its reverse (11554032), we get a palindrome (34599543).

The spelling of 23045511 in words is "twenty-three million, forty-five thousand, five hundred eleven".