11051000191 has 32 divisors (see below), whose sum is σ = 14527641600. Its totient is φ = 8144102880.

The previous prime is 11051000183. The next prime is 11051000203. The reversal of 11051000191 is 19100015011.

It is a cyclic number.

It is not a de Polignac number, because 11051000191 - 2³ = 11051000183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11051000111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 899496 + ... + 911698.

It is an arithmetic number, because the mean of its divisors is an integer number (453988800).

Almost surely, 2^11051000191 is an apocalyptic number.

11051000191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11051000191 is a deficient number, since it is larger than the sum of its proper divisors (3476641409).

11051000191 is a wasteful number, since it uses less digits than its factorization.

11051000191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12859.

The product of its (nonzero) digits is 45, while the sum is 19.

The spelling of 11051000191 in words is "eleven billion, fifty-one million, one hundred ninety-one", and thus it is an aban number.