2140231312 has 10 divisors (see below), whose sum is σ = 4146698198. Its totient is φ = 1070115648.

The previous prime is 2140231297. The next prime is 2140231321. The reversal of 2140231312 is 2131320412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2086296976 + 53934336 = 45676^2 + 7344^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2140231312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66882213 + ... + 66882244.

Almost surely, 2^2140231312 is an apocalyptic number.

It is an amenable number.

2140231312 is a deficient number, since it is larger than the sum of its proper divisors (2006466886).

2140231312 is a wasteful number, since it uses less digits than its factorization.

2140231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133764465 (or 133764459 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2140231312 is about 46262.6340797841. The cubic root of 2140231312 is about 1288.7051711234.

Adding to 2140231312 its reverse (2131320412), we get a palindrome (4271551724).

The spelling of 2140231312 in words is "two billion, one hundred forty million, two hundred thirty-one thousand, three hundred twelve".