23311120123 has 4 divisors (see below), whose sum is σ = 23429450880. Its totient is φ = 23192789368.

The previous prime is 23311120111. The next prime is 23311120153. The reversal of 23311120123 is 32102111332.

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 23311120123 - 2¹³ = 23311111931 is a prime.

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 23311120123.

It is not an unprimeable number, because it can be changed into a prime (23311120153) 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, 59165083 + ... + 59165476.

It is an arithmetic number, because the mean of its divisors is an integer number (5857362720).

Almost surely, 2^23311120123 is an apocalyptic number.

23311120123 is a deficient number, since it is larger than the sum of its proper divisors (118330757).

23311120123 is a wasteful number, since it uses less digits than its factorization.

23311120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118330756.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23311120123 its reverse (32102111332), we get a palindrome (55413231455).

The spelling of 23311120123 in words is "twenty-three billion, three hundred eleven million, one hundred twenty thousand, one hundred twenty-three".