1312140232 has 16 divisors (see below), whose sum is σ = 2649514140. Its totient is φ = 605603136.

The previous prime is 1312140211. The next prime is 1312140259. The reversal of 1312140232 is 2320412131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1300756356 + 11383876 = 36066^2 + 3374^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6308263 + ... + 6308470.

Almost surely, 2^1312140232 is an apocalyptic number.

It is an amenable number.

1312140232 is an abundant number, since it is smaller than the sum of its proper divisors (1337373908).

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

1312140232 is a wasteful number, since it uses less digits than its factorization.

1312140232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12616752 (or 12616748 counting only the distinct ones).

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

The square root of 1312140232 is about 36223.4762550476. The cubic root of 1312140232 is about 1094.7797370465.

Adding to 1312140232 its reverse (2320412131), we get a palindrome (3632552363).

The spelling of 1312140232 in words is "one billion, three hundred twelve million, one hundred forty thousand, two hundred thirty-two".