133011520332021 has 12 divisors (see below), whose sum is σ = 193417199589900. Its totient is φ = 88079217042240.

The previous prime is 133011520332013. The next prime is 133011520332139. The reversal of 133011520332021 is 120233025110331.

133011520332021 is a `hidden beast` number, since 1 + 3 + 3 + 0 + 115 + 203 + 320 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 69726090546225 + 63285429785796 = 8350215^2 + 7955214^2 .

It is not a de Polignac number, because 133011520332021 - 2³ = 133011520332013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133011520337021) 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, 49594152400 + ... + 49594155081.

It is an arithmetic number, because the mean of its divisors is an integer number (16118099965825).

Almost surely, 2^{133011520332021} is an apocalyptic number.

It is an amenable number.

133011520332021 is a deficient number, since it is larger than the sum of its proper divisors (60405679257879).

133011520332021 is a wasteful number, since it uses less digits than its factorization.

133011520332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99188307636 (or 99188307633 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 133011520332021 its reverse (120233025110331), we get a palindrome (253244545442352).

The spelling of 133011520332021 in words is "one hundred thirty-three trillion, eleven billion, five hundred twenty million, three hundred thirty-two thousand, twenty-one".