11181103418 has 4 divisors (see below), whose sum is σ = 16771655130. Its totient is φ = 5590551708.

The previous prime is 11181103403. The next prime is 11181103421. The reversal of 11181103418 is 81430118111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6562134049 + 4618969369 = 81007^2 + 67963^2 .

It is a super-2 number, since 2×11181103418² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2795275853 + ... + 2795275856.

Almost surely, 2^11181103418 is an apocalyptic number.

11181103418 is a deficient number, since it is larger than the sum of its proper divisors (5590551712).

11181103418 is an equidigital number, since it uses as much as digits as its factorization.

11181103418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590551711.

The product of its (nonzero) digits is 768, while the sum is 29.

The spelling of 11181103418 in words is "eleven billion, one hundred eighty-one million, one hundred three thousand, four hundred eighteen".