11165636021331 has 16 divisors (see below), whose sum is σ = 16251094844928. Its totient is φ = 6762814749600.

The previous prime is 11165636021237. The next prime is 11165636021339. The reversal of 11165636021331 is 13312063656111.

11165636021331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11165636021331 - 2¹⁰ = 11165636020307 is a prime.

It is a super-2 number, since 2×11165636021331² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11165636021331.

It is not an unprimeable number, because it can be changed into a prime (11165636021339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105881115 + ... + 105986516.

It is an arithmetic number, because the mean of its divisors is an integer number (1015693427808).

Almost surely, 2^{11165636021331} is an apocalyptic number.

11165636021331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11165636021331 is a deficient number, since it is larger than the sum of its proper divisors (5085458823597).

11165636021331 is a wasteful number, since it uses less digits than its factorization.

11165636021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211869242.

The product of its (nonzero) digits is 58320, while the sum is 39.

Adding to 11165636021331 its reverse (13312063656111), we get a palindrome (24477699677442).

The spelling of 11165636021331 in words is "eleven trillion, one hundred sixty-five billion, six hundred thirty-six million, twenty-one thousand, three hundred thirty-one".