1320322133421 has 24 divisors (see below), whose sum is σ = 1910718346680. Its totient is φ = 878560252416.

The previous prime is 1320322133407. The next prime is 1320322133461. The reversal of 1320322133421 is 1243312230231.

1320322133421 is a `hidden beast` number, since 1 + 3 + 2 + 0 + 322 + 1 + 334 + 2 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 201933396900 + 1118388736521 = 449370^2 + 1057539^2 .

It is not a de Polignac number, because 1320322133421 - 2¹⁵ = 1320322100653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320322133401) 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 23 ways as a sum of consecutive naturals, for example, 22921785 + ... + 22979313.

It is an arithmetic number, because the mean of its divisors is an integer number (79613264445).

Almost surely, 2^{1320322133421} is an apocalyptic number.

It is an amenable number.

1320322133421 is a deficient number, since it is larger than the sum of its proper divisors (590396213259).

1320322133421 is a wasteful number, since it uses less digits than its factorization.

1320322133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62285 (or 62282 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1320322133421 its reverse (1243312230231), we get a palindrome (2563634363652).

The spelling of 1320322133421 in words is "one trillion, three hundred twenty billion, three hundred twenty-two million, one hundred thirty-three thousand, four hundred twenty-one".