11397111 has 12 divisors (see below), whose sum is σ = 16703736. Its totient is φ = 6907120.

The previous prime is 11397103. The next prime is 11397163. The reversal of 11397111 is 11179311.

It is not a de Polignac number, because 11397111 - 2³ = 11397103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11397011) 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, 15336 + ... + 16061.

It is an arithmetic number, because the mean of its divisors is an integer number (1391978).

Almost surely, 2^11397111 is an apocalyptic number.

11397111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11397111 is a deficient number, since it is larger than the sum of its proper divisors (5306625).

11397111 is a wasteful number, since it uses less digits than its factorization.

11397111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31422 (or 31411 counting only the distinct ones).

The product of its digits is 189, while the sum is 24.

The square root of 11397111 is about 3375.9607521415. The cubic root of 11397111 is about 225.0426980695.

The spelling of 11397111 in words is "eleven million, three hundred ninety-seven thousand, one hundred eleven".