133233041021 has 4 divisors (see below), whose sum is σ = 133233776544. Its totient is φ = 133232305500.

The previous prime is 133233040987. The next prime is 133233041033. The reversal of 133233041021 is 120140332331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 120140332331 = 43 ⋅2793961217.

It is a cyclic number.

It is not a de Polignac number, because 133233041021 - 2²⁶ = 133165932157 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 (133233061021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116546 + ... + 529196.

It is an arithmetic number, because the mean of its divisors is an integer number (33308444136).

Almost surely, 2^133233041021 is an apocalyptic number.

It is an amenable number.

133233041021 is a deficient number, since it is larger than the sum of its proper divisors (735523).

133233041021 is an equidigital number, since it uses as much as digits as its factorization.

133233041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735522.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 133233041021 its reverse (120140332331), we get a palindrome (253373373352).

The spelling of 133233041021 in words is "one hundred thirty-three billion, two hundred thirty-three million, forty-one thousand, twenty-one".