133023020233321 has 4 divisors (see below), whose sum is σ = 133023633807172. Its totient is φ = 133022406659472.

The previous prime is 133023020233249. The next prime is 133023020233333. The reversal of 133023020233321 is 123332020320331.

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 54729457060096 + 78293563173225 = 7397936^2 + 8848365^2 .

It is a cyclic number.

It is not a de Polignac number, because 133023020233321 - 2³⁵ = 132988660494953 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 133023020233321.

It is not an unprimeable number, because it can be changed into a prime (133023020237321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306461610 + ... + 306895363.

It is an arithmetic number, because the mean of its divisors is an integer number (33255908451793).

Almost surely, 2^{133023020233321} is an apocalyptic number.

It is an amenable number.

133023020233321 is a deficient number, since it is larger than the sum of its proper divisors (613573851).

133023020233321 is an equidigital number, since it uses as much as digits as its factorization.

133023020233321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613573850.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 133023020233321 its reverse (123332020320331), we get a palindrome (256355040553652).

The spelling of 133023020233321 in words is "one hundred thirty-three trillion, twenty-three billion, twenty million, two hundred thirty-three thousand, three hundred twenty-one".