1312232936 has 80 divisors (see below), whose sum is σ = 2926764900. Its totient is φ = 551346432.

The previous prime is 1312232923. The next prime is 1312232951. The reversal of 1312232936 is 6392322131.

It can be written as a sum of positive squares in 2 ways, for example, as 1210344100 + 101888836 = 34790^2 + 10094^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1017380 + ... + 1018668.

Almost surely, 2^1312232936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312232936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463382450).

1312232936 is an abundant number, since it is smaller than the sum of its proper divisors (1614531964).

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

1312232936 is an equidigital number, since it uses as much as digits as its factorization.

1312232936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1351 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The square root of 1312232936 is about 36224.7558445878. The cubic root of 1312232936 is about 1094.8055188616.

The spelling of 1312232936 in words is "one billion, three hundred twelve million, two hundred thirty-two thousand, nine hundred thirty-six".