11091000002 has 8 divisors (see below), whose sum is σ = 16637270076. Its totient is φ = 5545243312.

The previous prime is 11090999987. The next prime is 11091000143. The reversal of 11091000002 is 20000019011.

It can be written as a sum of positive squares in 2 ways, for example, as 11060518561 + 30481441 = 105169^2 + 5521^2 .

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, 68813 + ... + 164064.

Almost surely, 2^11091000002 is an apocalyptic number.

11091000002 is a deficient number, since it is larger than the sum of its proper divisors (5546270074).

11091000002 is a wasteful number, since it uses less digits than its factorization.

11091000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256692.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11091000002 its reverse (20000019011), we get a palindrome (31091019013).

The spelling of 11091000002 in words is "eleven billion, ninety-one million, two", and thus it is an aban number and an uban number.