133404223321 has 4 divisors (see below), whose sum is σ = 134102674944. Its totient is φ = 132705771700.

The previous prime is 133404223319. The next prime is 133404223339. The reversal of 133404223321 is 123322404331.

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.

It is a cyclic number.

It is not a de Polignac number, because 133404223321 - 2¹ = 133404223319 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 133404223321.

It is not an unprimeable number, because it can be changed into a prime (133404223361) 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, 349225525 + ... + 349225906.

It is an arithmetic number, because the mean of its divisors is an integer number (33525668736).

Almost surely, 2^133404223321 is an apocalyptic number.

It is an amenable number.

133404223321 is a deficient number, since it is larger than the sum of its proper divisors (698451623).

133404223321 is an equidigital number, since it uses as much as digits as its factorization.

133404223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698451622.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 133404223321 its reverse (123322404331), we get a palindrome (256726627652).

The spelling of 133404223321 in words is "one hundred thirty-three billion, four hundred four million, two hundred twenty-three thousand, three hundred twenty-one".