133213320233 has 4 divisors (see below), whose sum is σ = 152243794560. Its totient is φ = 114182845908.

The previous prime is 133213320209. The next prime is 133213320287. The reversal of 133213320233 is 332023312331.

It is a happy number.

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: 332023312331 = 86993 ⋅3816667.

It is a cyclic number.

It is not a de Polignac number, because 133213320233 - 2⁸ = 133213319977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133213320133) 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, 9515237153 + ... + 9515237166.

It is an arithmetic number, because the mean of its divisors is an integer number (38060948640).

Almost surely, 2^133213320233 is an apocalyptic number.

It is an amenable number.

133213320233 is a deficient number, since it is larger than the sum of its proper divisors (19030474327).

133213320233 is an equidigital number, since it uses as much as digits as its factorization.

133213320233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19030474326.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 133213320233 its reverse (332023312331), we get a palindrome (465236632564).

The spelling of 133213320233 in words is "one hundred thirty-three billion, two hundred thirteen million, three hundred twenty thousand, two hundred thirty-three".