11110100018 has 4 divisors (see below), whose sum is σ = 16665150030. Its totient is φ = 5555050008.

The previous prime is 11110100011. The next prime is 11110100039. The reversal of 11110100018 is 81000101111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81000101111 = 67 ⋅1208956733.

It can be written as a sum of positive squares in only one way, i.e., 10765515049 + 344584969 = 103757^2 + 18563^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11110099975 and 11110100011.

It is not an unprimeable number, because it can be changed into a prime (11110100011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777525003 + ... + 2777525006.

Almost surely, 2^11110100018 is an apocalyptic number.

11110100018 is a deficient number, since it is larger than the sum of its proper divisors (5555050012).

11110100018 is an equidigital number, since it uses as much as digits as its factorization.

11110100018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555050011.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11110100018 its reverse (81000101111), we get a palindrome (92110201129).

The spelling of 11110100018 in words is "eleven billion, one hundred ten million, one hundred thousand, eighteen".