11181104881 has 4 divisors (see below), whose sum is σ = 11315817072. Its totient is φ = 11046392692.

The previous prime is 11181104801. The next prime is 11181104887. The reversal of 11181104881 is 18840118111.

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 not a de Polignac number, because 11181104881 - 2²¹ = 11179007729 is a prime.

It is a super-2 number, since 2×11181104881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11181104887) 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, 67355971 + ... + 67356136.

It is an arithmetic number, because the mean of its divisors is an integer number (2828954268).

Almost surely, 2^11181104881 is an apocalyptic number.

It is an amenable number.

11181104881 is a deficient number, since it is larger than the sum of its proper divisors (134712191).

11181104881 is an equidigital number, since it uses as much as digits as its factorization.

11181104881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134712190.

The product of its (nonzero) digits is 2048, while the sum is 34.

The spelling of 11181104881 in words is "eleven billion, one hundred eighty-one million, one hundred four thousand, eight hundred eighty-one".