23011112001 has 4 divisors (see below), whose sum is σ = 30681482672. Its totient is φ = 15340741332.

The previous prime is 23011111997. The next prime is 23011112017. The reversal of 23011112001 is 10021111032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23011112001 - 2² = 23011111997 is a prime.

It is a super-2 number, since 2×23011112001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23011112041) 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, 3835185331 + ... + 3835185336.

It is an arithmetic number, because the mean of its divisors is an integer number (7670370668).

Almost surely, 2^23011112001 is an apocalyptic number.

It is an amenable number.

23011112001 is a deficient number, since it is larger than the sum of its proper divisors (7670370671).

23011112001 is an equidigital number, since it uses as much as digits as its factorization.

23011112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7670370670.

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

Adding to 23011112001 its reverse (10021111032), we get a palindrome (33032223033).

The spelling of 23011112001 in words is "twenty-three billion, eleven million, one hundred twelve thousand, one".