23121233312 has 24 divisors (see below), whose sum is σ = 45847418400. Its totient is φ = 11477444544.

The previous prime is 23121233237. The next prime is 23121233321. The reversal of 23121233312 is 21333212132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594612 + ... + 2603507.

It is an arithmetic number, because the mean of its divisors is an integer number (1910309100).

Almost surely, 2^23121233312 is an apocalyptic number.

It is an amenable number.

23121233312 is a deficient number, since it is larger than the sum of its proper divisors (22726185088).

23121233312 is a wasteful number, since it uses less digits than its factorization.

23121233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198268 (or 5198260 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 23121233312 its reverse (21333212132), we get a palindrome (44454445444).

The spelling of 23121233312 in words is "twenty-three billion, one hundred twenty-one million, two hundred thirty-three thousand, three hundred twelve".