2231231312 has 40 divisors (see below), whose sum is σ = 4427723304. Its totient is φ = 1088815104.

The previous prime is 2231231309. The next prime is 2231231339. The reversal of 2231231312 is 2131321322.

2231231312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 471932176 + 1759299136 = 21724^2 + 41944^2 .

It is a super-3 number, since 3×2231231312³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

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, 156848 + ... + 170480.

Almost surely, 2^2231231312 is an apocalyptic number.

It is an amenable number.

2231231312 is a deficient number, since it is larger than the sum of its proper divisors (2196491992).

2231231312 is a wasteful number, since it uses less digits than its factorization.

2231231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13887 (or 13881 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 2231231312 is about 47235.9112540448. The cubic root of 2231231312 is about 1306.7169723564.

Adding to 2231231312 its reverse (2131321322), we get a palindrome (4362552634).

The spelling of 2231231312 in words is "two billion, two hundred thirty-one million, two hundred thirty-one thousand, three hundred twelve".