11318391 has 12 divisors (see below), whose sum is σ = 18684432. Its totient is φ = 6467616.

The previous prime is 11318389. The next prime is 11318401. The reversal of 11318391 is 19381311.

It is a happy number.

It is not a de Polignac number, because 11318391 - 2¹ = 11318389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11318341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89766 + ... + 89891.

It is an arithmetic number, because the mean of its divisors is an integer number (1557036).

Almost surely, 2^11318391 is an apocalyptic number.

11318391 is a deficient number, since it is larger than the sum of its proper divisors (7366041).

11318391 is a wasteful number, since it uses less digits than its factorization.

11318391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179670 (or 179667 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 11318391 is about 3364.2816469493. The cubic root of 11318391 is about 224.5233762528.

The spelling of 11318391 in words is "eleven million, three hundred eighteen thousand, three hundred ninety-one".