2123331312 has 40 divisors (see below), whose sum is σ = 5505109456. Its totient is φ = 705217536.

The previous prime is 2123331307. The next prime is 2123331313. The reversal of 2123331312 is 2131333212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123331313) 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, 66553 + ... + 93144.

Almost surely, 2^2123331312 is an apocalyptic number.

It is an amenable number.

2123331312 is an abundant number, since it is smaller than the sum of its proper divisors (3381778144).

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

2123331312 is a wasteful number, since it uses less digits than its factorization.

2123331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159985 (or 159979 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 2123331312 is about 46079.6192692605. The cubic root of 2123331312 is about 1285.3041843230.

Adding to 2123331312 its reverse (2131333212), we get a palindrome (4254664524).

The spelling of 2123331312 in words is "two billion, one hundred twenty-three million, three hundred thirty-one thousand, three hundred twelve".