1323130003221 has 16 divisors (see below), whose sum is σ = 1917309067520. Its totient is φ = 806763810240.

The previous prime is 1323130003219. The next prime is 1323130003243. The reversal of 1323130003221 is 1223000313231.

It is not a de Polignac number, because 1323130003221 - 2¹ = 1323130003219 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 (1323130003291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155621485 + ... + 155629986.

It is an arithmetic number, because the mean of its divisors is an integer number (119831816720).

Almost surely, 2^{1323130003221} is an apocalyptic number.

It is an amenable number.

1323130003221 is a deficient number, since it is larger than the sum of its proper divisors (594179064299).

1323130003221 is a wasteful number, since it uses less digits than its factorization.

1323130003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311251596.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1323130003221 its reverse (1223000313231), we get a palindrome (2546130316452).

The spelling of 1323130003221 in words is "one trillion, three hundred twenty-three billion, one hundred thirty million, three thousand, two hundred twenty-one".