1332321121 has 4 divisors (see below), whose sum is σ = 1336578052. Its totient is φ = 1328064192.

The previous prime is 1332321083. The next prime is 1332321139. The reversal of 1332321121 is 1211232331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 288320400 + 1044000721 = 16980^2 + 32311^2 .

It is a cyclic number.

It is not a de Polignac number, because 1332321121 - 2⁷ = 1332320993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1332321721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2127996 + ... + 2128621.

It is an arithmetic number, because the mean of its divisors is an integer number (334144513).

Almost surely, 2^1332321121 is an apocalyptic number.

It is an amenable number.

1332321121 is a deficient number, since it is larger than the sum of its proper divisors (4256931).

1332321121 is an equidigital number, since it uses as much as digits as its factorization.

1332321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256930.

The product of its digits is 216, while the sum is 19.

The square root of 1332321121 is about 36500.9742472718. The cubic root of 1332321121 is about 1100.3638248308.

Adding to 1332321121 its reverse (1211232331), we get a palindrome (2543553452).

The spelling of 1332321121 in words is "one billion, three hundred thirty-two million, three hundred twenty-one thousand, one hundred twenty-one".