11191019002 has 8 divisors (see below), whose sum is σ = 16787049876. Its totient is φ = 5595335712.

The previous prime is 11191018973. The next prime is 11191019027. The reversal of 11191019002 is 20091019111.

It can be written as a sum of positive squares in 2 ways, for example, as 11018910841 + 172108161 = 104971^2 + 13119^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19798 + ... + 150910.

Almost surely, 2^11191019002 is an apocalyptic number.

11191019002 is a deficient number, since it is larger than the sum of its proper divisors (5596030874).

11191019002 is a wasteful number, since it uses less digits than its factorization.

11191019002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173792.

The product of its (nonzero) digits is 162, while the sum is 25.

The spelling of 11191019002 in words is "eleven billion, one hundred ninety-one million, nineteen thousand, two".