1311936888 has 16 divisors (see below), whose sum is σ = 3279842280. Its totient is φ = 437312288.

The previous prime is 1311936883. The next prime is 1311936907. The reversal of 1311936888 is 8886391131.

It is a super-3 number, since 3×1311936888³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311936883) 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, 27331995 + ... + 27332042.

Almost surely, 2^1311936888 is an apocalyptic number.

It is an amenable number.

1311936888 is an abundant number, since it is smaller than the sum of its proper divisors (1967905392).

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

1311936888 is a wasteful number, since it uses less digits than its factorization.

1311936888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54664046 (or 54664042 counting only the distinct ones).

The product of its digits is 248832, while the sum is 48.

The square root of 1311936888 is about 36220.6693477633. The cubic root of 1311936888 is about 1094.7231810000.

The spelling of 1311936888 in words is "one billion, three hundred eleven million, nine hundred thirty-six thousand, eight hundred eighty-eight".