23005011 has 4 divisors (see below), whose sum is σ = 30673352. Its totient is φ = 15336672.

The previous prime is 23004979. The next prime is 23005013. The reversal of 23005011 is 11050032.

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

It is not a de Polignac number, because 23005011 - 2⁵ = 23004979 is a prime.

It is a super-2 number, since 2×23005011² = 1058461062220242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23005013) 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, 3834166 + ... + 3834171.

It is an arithmetic number, because the mean of its divisors is an integer number (7668338).

Almost surely, 2^23005011 is an apocalyptic number.

23005011 is a deficient number, since it is larger than the sum of its proper divisors (7668341).

23005011 is an equidigital number, since it uses as much as digits as its factorization.

23005011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7668340.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 23005011 is about 4796.3539277247. The cubic root of 23005011 is about 284.4073495542.

Adding to 23005011 its reverse (11050032), we get a palindrome (34055043).

The spelling of 23005011 in words is "twenty-three million, five thousand, eleven".