133203232321 has 4 divisors (see below), whose sum is σ = 133207729200. Its totient is φ = 133198735444.

The previous prime is 133203232319. The next prime is 133203232391. The reversal of 133203232321 is 123232302331.

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.

It is a cyclic number.

It is not a de Polignac number, because 133203232321 - 2¹ = 133203232319 is a prime.

It is a super-2 number, since 2×133203232321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133203232391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203711 + ... + 2263348.

It is an arithmetic number, because the mean of its divisors is an integer number (33301932300).

Almost surely, 2^133203232321 is an apocalyptic number.

It is an amenable number.

133203232321 is a deficient number, since it is larger than the sum of its proper divisors (4496879).

133203232321 is an equidigital number, since it uses as much as digits as its factorization.

133203232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496878.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 133203232321 its reverse (123232302331), we get a palindrome (256435534652).

The spelling of 133203232321 in words is "one hundred thirty-three billion, two hundred three million, two hundred thirty-two thousand, three hundred twenty-one".