23123313312 has 48 divisors (see below), whose sum is σ = 66216763872. Its totient is φ = 7007064320.

The previous prime is 23123313289. The next prime is 23123313313. The reversal of 23123313312 is 21331332132.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (23123313313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10947483 + ... + 10949594.

It is an arithmetic number, because the mean of its divisors is an integer number (1379515914).

Almost surely, 2^23123313312 is an apocalyptic number.

23123313312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23123313312 is an abundant number, since it is smaller than the sum of its proper divisors (43093450560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23123313312 is a wasteful number, since it uses less digits than its factorization.

23123313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21897101 (or 21897093 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 23123313312 its reverse (21331332132), we get a palindrome (44454645444).

The spelling of 23123313312 in words is "twenty-three billion, one hundred twenty-three million, three hundred thirteen thousand, three hundred twelve".