1138111180 has 24 divisors (see below), whose sum is σ = 2430545040. Its totient is φ = 447528000.

The previous prime is 1138111159. The next prime is 1138111193. The reversal of 1138111180 is 811118311.

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, 481071 + ... + 483430.

It is an arithmetic number, because the mean of its divisors is an integer number (101272710).

Almost surely, 2^1138111180 is an apocalyptic number.

1138111180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1138111180 is an abundant number, since it is smaller than the sum of its proper divisors (1292433860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1138111180 is a wasteful number, since it uses less digits than its factorization.

1138111180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964569 (or 964567 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 25.

The square root of 1138111180 is about 33735.9034264684. The cubic root of 1138111180 is about 1044.0666651009.

Adding to 1138111180 its reverse (811118311), we get a palindrome (1949229491).

The spelling of 1138111180 in words is "one billion, one hundred thirty-eight million, one hundred eleven thousand, one hundred eighty".