1118338111 has 16 divisors (see below), whose sum is σ = 1240420608. Its totient is φ = 999734400.

The previous prime is 1118338079. The next prime is 1118338129.

1118338111 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1118338111 - 2⁵ = 1118338079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1118338111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118338171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336520 + ... + 339826.

It is an arithmetic number, because the mean of its divisors is an integer number (77526288).

Almost surely, 2^1118338111 is an apocalyptic number.

1118338111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1118338111 is a deficient number, since it is larger than the sum of its proper divisors (122082497).

1118338111 is a wasteful number, since it uses less digits than its factorization.

1118338111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822.

The product of its digits is 576, while the sum is 28.

The square root of 1118338111 is about 33441.5626279634. The cubic root of 1118338111 is about 1037.9849143873.

It can be divided in two parts, 11183 and 38111, that added together give a palindrome (49294).

The spelling of 1118338111 in words is "one billion, one hundred eighteen million, three hundred thirty-eight thousand, one hundred eleven".