11121501133 has 4 divisors (see below), whose sum is σ = 11775707100. Its totient is φ = 10467295168.

The previous prime is 11121501109. The next prime is 11121501179. The reversal of 11121501133 is 33110512111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5901005124 + 5220496009 = 76818^2 + 72253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121501133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121501133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121501233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327102958 + ... + 327102991.

It is an arithmetic number, because the mean of its divisors is an integer number (2943926775).

Almost surely, 2^11121501133 is an apocalyptic number.

It is an amenable number.

11121501133 is a deficient number, since it is larger than the sum of its proper divisors (654205967).

11121501133 is an equidigital number, since it uses as much as digits as its factorization.

11121501133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654205966.

The product of its (nonzero) digits is 90, while the sum is 19.

The spelling of 11121501133 in words is "eleven billion, one hundred twenty-one million, five hundred one thousand, one hundred thirty-three".