11131868 has 24 divisors (see below), whose sum is σ = 21337344. Its totient is φ = 5039600.

The previous prime is 11131859. The next prime is 11131873. The reversal of 11131868 is 86813111.

It is a self number, because there is not a number n which added to its sum of digits gives 11131868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18671 + ... + 19257.

It is an arithmetic number, because the mean of its divisors is an integer number (889056).

Almost surely, 2^11131868 is an apocalyptic number.

It is an amenable number.

11131868 is a deficient number, since it is larger than the sum of its proper divisors (10205476).

11131868 is a wasteful number, since it uses less digits than its factorization.

11131868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1031 counting only the distinct ones).

The product of its digits is 1152, while the sum is 29.

The square root of 11131868 is about 3336.4454139098. The cubic root of 11131868 is about 223.2831837101.

Adding to 11131868 its reverse (86813111), we get a palindrome (97944979).

The spelling of 11131868 in words is "eleven million, one hundred thirty-one thousand, eight hundred sixty-eight".