133232310021 has 4 divisors (see below), whose sum is σ = 177643080032. Its totient is φ = 88821540012.

The previous prime is 133232310011. The next prime is 133232310049. The reversal of 133232310021 is 120013232331.

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 an emirpimes, since its reverse is a distinct semiprime: 120013232331 = 3 ⋅40004410777.

It is not a de Polignac number, because 133232310021 - 2⁷ = 133232309893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133232310021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133232310011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22205385001 + ... + 22205385006.

It is an arithmetic number, because the mean of its divisors is an integer number (44410770008).

Almost surely, 2^133232310021 is an apocalyptic number.

It is an amenable number.

133232310021 is a deficient number, since it is larger than the sum of its proper divisors (44410770011).

133232310021 is an equidigital number, since it uses as much as digits as its factorization.

133232310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44410770010.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 133232310021 its reverse (120013232331), we get a palindrome (253245542352).

The spelling of 133232310021 in words is "one hundred thirty-three billion, two hundred thirty-two million, three hundred ten thousand, twenty-one".