1321541353 has 8 divisors (see below), whose sum is σ = 1441961280. Its totient is φ = 1201168080.

The previous prime is 1321541329. The next prime is 1321541357. The reversal of 1321541353 is 3531451231.

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 1321541353 - 2⁹ = 1321540841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321541357) 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 7 ways as a sum of consecutive naturals, for example, 76743 + ... + 92371.

It is an arithmetic number, because the mean of its divisors is an integer number (180245160).

Almost surely, 2^1321541353 is an apocalyptic number.

It is an amenable number.

1321541353 is a deficient number, since it is larger than the sum of its proper divisors (120419927).

1321541353 is a wasteful number, since it uses less digits than its factorization.

1321541353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23327.

The product of its digits is 5400, while the sum is 28.

The square root of 1321541353 is about 36353.0102329917. The cubic root of 1321541353 is about 1097.3881152644.

Adding to 1321541353 its reverse (3531451231), we get a palindrome (4852992584).

The spelling of 1321541353 in words is "one billion, three hundred twenty-one million, five hundred forty-one thousand, three hundred fifty-three".