1312343312 has 20 divisors (see below), whose sum is σ = 2905903296. Its totient is φ = 562432800.

The previous prime is 1312343309. The next prime is 1312343317. The reversal of 1312343312 is 2133432131.

It is a super-2 number, since 2×1312343312² = 3444489937102258688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312343317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5858564 + ... + 5858787.

Almost surely, 2^1312343312 is an apocalyptic number.

It is an amenable number.

1312343312 is an abundant number, since it is smaller than the sum of its proper divisors (1593559984).

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

1312343312 is a wasteful number, since it uses less digits than its factorization.

1312343312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11717366 (or 11717360 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 1312343312 is about 36226.2793010820. The cubic root of 1312343312 is about 1094.8362138352.

Adding to 1312343312 its reverse (2133432131), we get a palindrome (3445775443).

The spelling of 1312343312 in words is "one billion, three hundred twelve million, three hundred forty-three thousand, three hundred twelve".