23043011 has 4 divisors (see below), whose sum is σ = 23065224. Its totient is φ = 23020800.

The previous prime is 23042993. The next prime is 23043017. The reversal of 23043011 is 11034032.

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

It is a cyclic number.

It is not a de Polignac number, because 23043011 - 2⁶ = 23042947 is a prime.

It is a super-2 number, since 2×23043011² = 1061960711892242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23043017) 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, 9470 + ... + 11651.

It is an arithmetic number, because the mean of its divisors is an integer number (5766306).

Almost surely, 2^23043011 is an apocalyptic number.

23043011 is a deficient number, since it is larger than the sum of its proper divisors (22213).

23043011 is a wasteful number, since it uses less digits than its factorization.

23043011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22212.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23043011 is about 4800.3136355867. The cubic root of 23043011 is about 284.5638594278.

Adding to 23043011 its reverse (11034032), we get a palindrome (34077043).

The spelling of 23043011 in words is "twenty-three million, forty-three thousand, eleven".