23111450577161 has 4 divisors (see below), whose sum is σ = 23111491521024. Its totient is φ = 23111409633300.

The previous prime is 23111450577157. The next prime is 23111450577167. The reversal of 23111450577161 is 16177505411132.

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 a cyclic number.

It is not a de Polignac number, because 23111450577161 - 2² = 23111450577157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23111450577167) 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, 19613225 + ... + 20758166.

It is an arithmetic number, because the mean of its divisors is an integer number (5777872880256).

Almost surely, 2^{23111450577161} is an apocalyptic number.

It is an amenable number.

23111450577161 is a deficient number, since it is larger than the sum of its proper divisors (40943863).

23111450577161 is an equidigital number, since it uses as much as digits as its factorization.

23111450577161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40943862.

The product of its (nonzero) digits is 176400, while the sum is 44.

Adding to 23111450577161 its reverse (16177505411132), we get a palindrome (39288955988293).

The spelling of 23111450577161 in words is "twenty-three trillion, one hundred eleven billion, four hundred fifty million, five hundred seventy-seven thousand, one hundred sixty-one".