23128611 has 16 divisors (see below), whose sum is σ = 33749760. Its totient is φ = 13972320.

The previous prime is 23128597. The next prime is 23128613. The reversal of 23128611 is 11682132.

It is a de Polignac number, because none of the positive numbers 2^k-23128611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23128613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11370 + ... + 13248.

It is an arithmetic number, because the mean of its divisors is an integer number (2109360).

Almost surely, 2^23128611 is an apocalyptic number.

23128611 is a deficient number, since it is larger than the sum of its proper divisors (10621149).

23128611 is a wasteful number, since it uses less digits than its factorization.

23128611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266.

The product of its digits is 576, while the sum is 24.

The square root of 23128611 is about 4809.2214546639. The cubic root of 23128611 is about 284.9157892168.

The spelling of 23128611 in words is "twenty-three million, one hundred twenty-eight thousand, six hundred eleven".