11091950305 has 32 divisors (see below), whose sum is σ = 14672651040. Its totient is φ = 8011960320.

The previous prime is 11091950297. The next prime is 11091950323. The reversal of 11091950305 is 50305919011.

It can be written as a sum of positive squares in 16 ways, for example, as 65270241 + 11026680064 = 8079^2 + 105008^2 .

It is not a de Polignac number, because 11091950305 - 2³ = 11091950297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372675 + ... + 401335.

It is an arithmetic number, because the mean of its divisors is an integer number (458520345).

Almost surely, 2^11091950305 is an apocalyptic number.

It is an amenable number.

11091950305 is a deficient number, since it is larger than the sum of its proper divisors (3580700735).

11091950305 is a wasteful number, since it uses less digits than its factorization.

11091950305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28869.

The product of its (nonzero) digits is 6075, while the sum is 34.

The spelling of 11091950305 in words is "eleven billion, ninety-one million, nine hundred fifty thousand, three hundred five".