1311376912 has 40 divisors (see below), whose sum is σ = 2566175040. Its totient is φ = 649173120.

The previous prime is 1311376867. The next prime is 1311376919. The reversal of 1311376912 is 2196731131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1311376919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752362 + ... + 754102.

It is an arithmetic number, because the mean of its divisors is an integer number (64154376).

Almost surely, 2^1311376912 is an apocalyptic number.

It is an amenable number.

1311376912 is a deficient number, since it is larger than the sum of its proper divisors (1254798128).

1311376912 is a wasteful number, since it uses less digits than its factorization.

1311376912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191 (or 2185 counting only the distinct ones).

The product of its digits is 6804, while the sum is 34.

The square root of 1311376912 is about 36212.9384612738. The cubic root of 1311376912 is about 1094.5674047192.

The spelling of 1311376912 in words is "one billion, three hundred eleven million, three hundred seventy-six thousand, nine hundred twelve".