2421301321 has 4 divisors (see below), whose sum is σ = 2504794500. Its totient is φ = 2337808144.

The previous prime is 2421301301. The next prime is 2421301327. The reversal of 2421301321 is 1231031242.

It is a happy number.

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 1544490000 + 876811321 = 39300^2 + 29611^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421301321 - 2²³ = 2412912713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421301327) 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, 41746546 + ... + 41746603.

It is an arithmetic number, because the mean of its divisors is an integer number (626198625).

Almost surely, 2^2421301321 is an apocalyptic number.

It is an amenable number.

2421301321 is a deficient number, since it is larger than the sum of its proper divisors (83493179).

2421301321 is an equidigital number, since it uses as much as digits as its factorization.

2421301321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83493178.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2421301321 is about 49206.7202829044. The cubic root of 2421301321 is about 1342.8152960202.

Adding to 2421301321 its reverse (1231031242), we get a palindrome (3652332563).

The spelling of 2421301321 in words is "two billion, four hundred twenty-one million, three hundred one thousand, three hundred twenty-one".