23111055 has 64 divisors (see below), whose sum is σ = 45619200. Its totient is φ = 11007360.

The previous prime is 23111029. The next prime is 23111069. The reversal of 23111055 is 55011132.

It is not a de Polignac number, because 23111055 - 2⁶ = 23110991 is a prime.

Together with 22508145 it forms an amicable pair .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117217 + ... + 117413.

It is an arithmetic number, because the mean of its divisors is an integer number (712800).

Almost surely, 2^23111055 is an apocalyptic number.

23111055 is a deficient number, since it is larger than the sum of its proper divisors (22508145).

23111055 is a wasteful number, since it uses less digits than its factorization.

23111055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 23111055 is about 4807.3958647068. The cubic root of 23111055 is about 284.8436815903.

Adding to 23111055 its reverse (55011132), we get a palindrome (78122187).

The spelling of 23111055 in words is "twenty-three million, one hundred eleven thousand, fifty-five".