11018949051161 has 4 divisors (see below), whose sum is σ = 11018957981712. Its totient is φ = 11018940120612.

The previous prime is 11018949051137. The next prime is 11018949051193. The reversal of 11018949051161 is 16115094981011.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11018949051161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11018949051961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2247251 + ... + 5204616.

It is an arithmetic number, because the mean of its divisors is an integer number (2754739495428).

Almost surely, 2^{11018949051161} is an apocalyptic number.

It is an amenable number.

11018949051161 is a deficient number, since it is larger than the sum of its proper divisors (8930551).

11018949051161 is an equidigital number, since it uses as much as digits as its factorization.

11018949051161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8930550.

The product of its (nonzero) digits is 77760, while the sum is 47.

The spelling of 11018949051161 in words is "eleven trillion, eighteen billion, nine hundred forty-nine million, fifty-one thousand, one hundred sixty-one".