11105511051 has 8 divisors (see below), whose sum is σ = 14807898000. Its totient is φ = 7403399072.

The previous prime is 11105511049. The next prime is 11105511073. The reversal of 11105511051 is 15011550111.

11105511051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11105511051 - 2¹ = 11105511049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11105511091) 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 7 ways as a sum of consecutive naturals, for example, 59881 + ... + 160613.

It is an arithmetic number, because the mean of its divisors is an integer number (1850987250).

Almost surely, 2^11105511051 is an apocalyptic number.

11105511051 is a deficient number, since it is larger than the sum of its proper divisors (3702386949).

11105511051 is a wasteful number, since it uses less digits than its factorization.

11105511051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137485.

The product of its (nonzero) digits is 125, while the sum is 21.

The spelling of 11105511051 in words is "eleven billion, one hundred five million, five hundred eleven thousand, fifty-one".