11521797044033 has 12 divisors (see below), whose sum is σ = 11950251985980. Its totient is φ = 11107549300032.

The previous prime is 11521797044011. The next prime is 11521797044039. The reversal of 11521797044033 is 33044079712511.

11521797044033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2810373957889 + 8711423086144 = 1676417^2 + 2951512^2 .

It is not a de Polignac number, because 11521797044033 - 2²² = 11521792849729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11521797044039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38457266 + ... + 38755707.

It is an arithmetic number, because the mean of its divisors is an integer number (995854332165).

Almost surely, 2^{11521797044033} is an apocalyptic number.

It is an amenable number.

11521797044033 is a deficient number, since it is larger than the sum of its proper divisors (428454941947).

11521797044033 is an equidigital number, since it uses as much as digits as its factorization.

11521797044033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77213156 (or 77213119 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 11521797044033 in words is "eleven trillion, five hundred twenty-one billion, seven hundred ninety-seven million, forty-four thousand, thirty-three".