1311374188 has 12 divisors (see below), whose sum is σ = 2296527520. Its totient is φ = 655223472.

The previous prime is 1311374161. The next prime is 1311374219. The reversal of 1311374188 is 8814731131.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 109503 + ... + 120886.

Almost surely, 2^1311374188 is an apocalyptic number.

It is an amenable number.

1311374188 is a deficient number, since it is larger than the sum of its proper divisors (985153332).

1311374188 is a wasteful number, since it uses less digits than its factorization.

1311374188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231816 (or 231814 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 1311374188 is about 36212.9008503876. The cubic root of 1311374188 is about 1094.5666468380.

The spelling of 1311374188 in words is "one billion, three hundred eleven million, three hundred seventy-four thousand, one hundred eighty-eight".