1116388911 has 8 divisors (see below), whose sum is σ = 1623838464. Its totient is φ = 676599320.

The previous prime is 1116388891. The next prime is 1116388939. The reversal of 1116388911 is 1198836111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1116388911 - 2⁷ = 1116388783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1116388911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116388961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16914951 + ... + 16915016.

It is an arithmetic number, because the mean of its divisors is an integer number (202979808).

Almost surely, 2^1116388911 is an apocalyptic number.

1116388911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1116388911 is a deficient number, since it is larger than the sum of its proper divisors (507449553).

1116388911 is a wasteful number, since it uses less digits than its factorization.

1116388911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33829981.

The product of its digits is 10368, while the sum is 39.

The square root of 1116388911 is about 33412.4065430792. The cubic root of 1116388911 is about 1037.3815140444.

The spelling of 1116388911 in words is "one billion, one hundred sixteen million, three hundred eighty-eight thousand, nine hundred eleven".