1311716398 has 8 divisors (see below), whose sum is σ = 2004698808. Its totient is φ = 643483464.

The previous prime is 1311716389. The next prime is 1311716411. The reversal of 1311716398 is 8936171131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1311716398.

It is a congruent number.

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, 6187236 + ... + 6187447.

It is an arithmetic number, because the mean of its divisors is an integer number (250587351).

Almost surely, 2^1311716398 is an apocalyptic number.

1311716398 is a deficient number, since it is larger than the sum of its proper divisors (692982410).

1311716398 is a wasteful number, since it uses less digits than its factorization.

1311716398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12374738.

The product of its digits is 27216, while the sum is 40.

The square root of 1311716398 is about 36217.6255157623. The cubic root of 1311716398 is about 1094.6618495341.

The spelling of 1311716398 in words is "one billion, three hundred eleven million, seven hundred sixteen thousand, three hundred ninety-eight".