11100000018 has 16 divisors (see below), whose sum is σ = 22236945696. Its totient is φ = 3693842400.

The previous prime is 11100000017. The next prime is 11100000019. The reversal of 11100000018 is 81000000111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11100000017) and next prime (11100000019).

It is a junction number, because it is equal to n+sod(n) for n = 11099999949 and 11100000012.

It is not an unprimeable number, because it can be changed into a prime (11100000017) 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, 1535496 + ... + 1542707.

It is an arithmetic number, because the mean of its divisors is an integer number (1389809106).

Almost surely, 2^11100000018 is an apocalyptic number.

11100000018 is an abundant number, since it is smaller than the sum of its proper divisors (11136945678).

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

11100000018 is a wasteful number, since it uses less digits than its factorization.

11100000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078809.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11100000018 its reverse (81000000111), we get a palindrome (92100000129).

The spelling of 11100000018 in words is "eleven billion, one hundred million, eighteen", and thus it is an aban number.