23145022711 has 4 divisors (see below), whose sum is σ = 23167300000. Its totient is φ = 23122745424.

The previous prime is 23145022669. The next prime is 23145022717. The reversal of 23145022711 is 11722054132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23145022711 - 2²⁵ = 23111468279 is a prime.

It is a super-4 number, since 4×23145022711⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23145022711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145022717) 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, 11137086 + ... + 11139163.

It is an arithmetic number, because the mean of its divisors is an integer number (5791825000).

Almost surely, 2^23145022711 is an apocalyptic number.

23145022711 is a deficient number, since it is larger than the sum of its proper divisors (22277289).

23145022711 is a wasteful number, since it uses less digits than its factorization.

23145022711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22277288.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 23145022711 its reverse (11722054132), we get a palindrome (34867076843).

The spelling of 23145022711 in words is "twenty-three billion, one hundred forty-five million, twenty-two thousand, seven hundred eleven".