11317984387 has 2 divisors, whose sum is σ = 11317984388. Its totient is φ = 11317984386.

The previous prime is 11317984373. The next prime is 11317984397. The reversal of 11317984387 is 78348971311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11317984387 is a prime.

It is not a weakly prime, because it can be changed into another prime (11317984397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5658992193 + 5658992194.

It is an arithmetic number, because the mean of its divisors is an integer number (5658992194).

Almost surely, 2^11317984387 is an apocalyptic number.

11317984387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11317984387 is an equidigital number, since it uses as much as digits as its factorization.

11317984387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 52.

The spelling of 11317984387 in words is "eleven billion, three hundred seventeen million, nine hundred eighty-four thousand, three hundred eighty-seven".