11118182401 has 4 divisors (see below), whose sum is σ = 11126690352. Its totient is φ = 11109674452.

The previous prime is 11118182381. The next prime is 11118182441. The reversal of 11118182401 is 10428181111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11118182401 is a prime.

It is a super-2 number, since 2×11118182401² (a number of 21 digits) contains 22 as substring.

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 11118182401.

It is not an unprimeable number, because it can be changed into a prime (11118182441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4252015 + ... + 4254628.

It is an arithmetic number, because the mean of its divisors is an integer number (2781672588).

It is a Proth number, since it is equal to 84825 ⋅ 2¹⁷ + 1 and 84825 < 2¹⁷.

Almost surely, 2^11118182401 is an apocalyptic number.

It is an amenable number.

11118182401 is a deficient number, since it is larger than the sum of its proper divisors (8507951).

11118182401 is an equidigital number, since it uses as much as digits as its factorization.

11118182401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507950.

The product of its (nonzero) digits is 512, while the sum is 28.

The spelling of 11118182401 in words is "eleven billion, one hundred eighteen million, one hundred eighty-two thousand, four hundred one".