2321111312 has 40 divisors (see below), whose sum is σ = 4846314816. Its totient is φ = 1070568576.

The previous prime is 2321111227. The next prime is 2321111321. The reversal of 2321111312 is 2131111232.

It is a super-2 number, since 2×2321111312² = 10775115445388722688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431423 + ... + 436769.

Almost surely, 2^2321111312 is an apocalyptic number.

It is an amenable number.

2321111312 is an abundant number, since it is smaller than the sum of its proper divisors (2525203504).

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

2321111312 is a wasteful number, since it uses less digits than its factorization.

2321111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7455 (or 7449 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 2321111312 is about 48177.9131137911. The cubic root of 2321111312 is about 1324.0325320667.

Adding to 2321111312 its reverse (2131111232), we get a palindrome (4452222544).

The spelling of 2321111312 in words is "two billion, three hundred twenty-one million, one hundred eleven thousand, three hundred twelve".