23011055 has 4 divisors (see below), whose sum is σ = 27613272. Its totient is φ = 18408840.

The previous prime is 23011031. The next prime is 23011057. The reversal of 23011055 is 55011032.

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

It is not a de Polignac number, because 23011055 - 2¹² = 23006959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011057) 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, 2301101 + ... + 2301110.

It is an arithmetic number, because the mean of its divisors is an integer number (6903318).

Almost surely, 2^23011055 is an apocalyptic number.

23011055 is a deficient number, since it is larger than the sum of its proper divisors (4602217).

23011055 is an equidigital number, since it uses as much as digits as its factorization.

23011055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602216.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 23011055 is about 4796.9839482742. The cubic root of 23011055 is about 284.4322543819.

Adding to 23011055 its reverse (55011032), we get a palindrome (78022087).

The spelling of 23011055 in words is "twenty-three million, eleven thousand, fifty-five".