11353552332021 has 20 divisors (see below), whose sum is σ = 17115843431500. Its totient is φ = 7499594195136.

The previous prime is 11353552332019. The next prime is 11353552332071. The reversal of 11353552332021 is 12023325535311.

11353552332021 is a `hidden beast` number, since 1 + 1 + 3 + 53 + 552 + 3 + 32 + 0 + 21 = 666.

11353552332021 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 2 ways, for example, as 10100249691921 + 1253302640100 = 3178089^2 + 1119510^2 .

It is not a de Polignac number, because 11353552332021 - 2¹ = 11353552332019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11353552332071) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 642960496 + ... + 642978153.

It is an arithmetic number, because the mean of its divisors is an integer number (855792171575).

Almost surely, 2^{11353552332021} is an apocalyptic number.

It is an amenable number.

11353552332021 is a deficient number, since it is larger than the sum of its proper divisors (5762291099479).

11353552332021 is a wasteful number, since it uses less digits than its factorization.

11353552332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285938770 (or 1285938761 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 11353552332021 its reverse (12023325535311), we get a palindrome (23376877867332).

The spelling of 11353552332021 in words is "eleven trillion, three hundred fifty-three billion, five hundred fifty-two million, three hundred thirty-two thousand, twenty-one".