1323133133221 has 8 divisors (see below), whose sum is σ = 1393532417600. Its totient is φ = 1252809918720.

The previous prime is 1323133133117. The next prime is 1323133133227. The reversal of 1323133133221 is 1223313313231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1323133133221 - 2¹³ = 1323133125029 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 1323133133221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323133133227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18981756 + ... + 19051333.

It is an arithmetic number, because the mean of its divisors is an integer number (174191552200).

Almost surely, 2^{1323133133221} is an apocalyptic number.

It is an amenable number.

1323133133221 is a deficient number, since it is larger than the sum of its proper divisors (70399284379).

1323133133221 is a wasteful number, since it uses less digits than its factorization.

1323133133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38034939.

The product of its digits is 5832, while the sum is 28.

Adding to 1323133133221 its reverse (1223313313231), we get a palindrome (2546446446452).

The spelling of 1323133133221 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-three million, one hundred thirty-three thousand, two hundred twenty-one".