1332020321 has 8 divisors (see below), whose sum is σ = 1390483584. Its totient is φ = 1273602880.

The previous prime is 1332020309. The next prime is 1332020353. The reversal of 1332020321 is 1230202331.

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 1332020321 - 2¹⁸ = 1331758177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1332020321.

It is not an unprimeable number, because it can be changed into a prime (1332320321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56636 + ... + 76626.

It is an arithmetic number, because the mean of its divisors is an integer number (173810448).

Almost surely, 2^1332020321 is an apocalyptic number.

It is an amenable number.

1332020321 is a deficient number, since it is larger than the sum of its proper divisors (58463263).

1332020321 is a wasteful number, since it uses less digits than its factorization.

1332020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22911.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1332020321 is about 36496.8535767126. The cubic root of 1332020321 is about 1100.2810083722.

Adding to 1332020321 its reverse (1230202331), we get a palindrome (2562222652).

The spelling of 1332020321 in words is "one billion, three hundred thirty-two million, twenty thousand, three hundred twenty-one".