23111232201 has 16 divisors (see below), whose sum is σ = 34310361600. Its totient is φ = 15375313584.

The previous prime is 23111232173. The next prime is 23111232203. The reversal of 23111232201 is 10223211132.

23111232201 is a `hidden beast` number, since 231 + 1 + 1 + 232 + 201 = 666.

It is not a de Polignac number, because 23111232201 - 2⁵ = 23111232169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23111232203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880566 + ... + 906431.

It is an arithmetic number, because the mean of its divisors is an integer number (2144397600).

Almost surely, 2^23111232201 is an apocalyptic number.

It is an amenable number.

23111232201 is a deficient number, since it is larger than the sum of its proper divisors (11199129399).

23111232201 is a wasteful number, since it uses less digits than its factorization.

23111232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787485 (or 1787479 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23111232201 its reverse (10223211132), we get a palindrome (33334443333).

The spelling of 23111232201 in words is "twenty-three billion, one hundred eleven million, two hundred thirty-two thousand, two hundred one".