133321211323 has 4 divisors (see below), whose sum is σ = 133330104360. Its totient is φ = 133312318288.

The previous prime is 133321211291. The next prime is 133321211351. The reversal of 133321211323 is 323112123331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323112123331 = 113011 ⋅2859121.

It is a cyclic number.

It is not a de Polignac number, because 133321211323 - 2⁵ = 133321211291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133321281323) 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, 4423993 + ... + 4454026.

It is an arithmetic number, because the mean of its divisors is an integer number (33332526090).

Almost surely, 2^133321211323 is an apocalyptic number.

133321211323 is a deficient number, since it is larger than the sum of its proper divisors (8893037).

133321211323 is an equidigital number, since it uses as much as digits as its factorization.

133321211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8893036.

The product of its digits is 1944, while the sum is 25.

Adding to 133321211323 its reverse (323112123331), we get a palindrome (456433334654).

The spelling of 133321211323 in words is "one hundred thirty-three billion, three hundred twenty-one million, two hundred eleven thousand, three hundred twenty-three".