133321023121223 has 4 divisors (see below), whose sum is σ = 152366883567120. Its totient is φ = 114275162675328.

The previous prime is 133321023121207. The next prime is 133321023121229. The reversal of 133321023121223 is 322121320123331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133321023121223 - 2⁴ = 133321023121207 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 (133321023121229) 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, 9522930222938 + ... + 9522930222951.

It is an arithmetic number, because the mean of its divisors is an integer number (38091720891780).

Almost surely, 2^{133321023121223} is an apocalyptic number.

133321023121223 is a deficient number, since it is larger than the sum of its proper divisors (19045860445897).

133321023121223 is an equidigital number, since it uses as much as digits as its factorization.

133321023121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19045860445896.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 133321023121223 its reverse (322121320123331), we get a palindrome (455442343244554).

The spelling of 133321023121223 in words is "one hundred thirty-three trillion, three hundred twenty-one billion, twenty-three million, one hundred twenty-one thousand, two hundred twenty-three".