6321363121 has 4 divisors (see below), whose sum is σ = 6328740132. Its totient is φ = 6313986112.

The previous prime is 6321363119. The next prime is 6321363127. The reversal of 6321363121 is 1213631236.

6321363121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5881202721 + 440160400 = 76689^2 + 20980^2 .

It is a cyclic number.

It is not a de Polignac number, because 6321363121 - 2¹ = 6321363119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6321363121.

It is not an unprimeable number, because it can be changed into a prime (6321363127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3687220 + ... + 3688933.

It is an arithmetic number, because the mean of its divisors is an integer number (1582185033).

Almost surely, 2^6321363121 is an apocalyptic number.

It is an amenable number.

6321363121 is a deficient number, since it is larger than the sum of its proper divisors (7377011).

6321363121 is an equidigital number, since it uses as much as digits as its factorization.

6321363121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377010.

The product of its digits is 3888, while the sum is 28.

The square root of 6321363121 is about 79507.0004527903. Note that the first 3 decimals coincide. The cubic root of 6321363121 is about 1849.0000070200. Note that the first 5 decimals are identical.

Adding to 6321363121 its reverse (1213631236), we get a palindrome (7534994357).

The spelling of 6321363121 in words is "six billion, three hundred twenty-one million, three hundred sixty-three thousand, one hundred twenty-one".