20240315321 has 2 divisors, whose sum is σ = 20240315322. Its totient is φ = 20240315320.

The previous prime is 20240315309. The next prime is 20240315323. The reversal of 20240315321 is 12351304202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11435308096 + 8805007225 = 106936^2 + 93835^2 .

It is a cyclic number.

It is not a de Polignac number, because 20240315321 - 2⁶ = 20240315257 is a prime.

It is a Sophie Germain prime.

Together with 20240315323, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20240315323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10120157660 + 10120157661.

It is an arithmetic number, because the mean of its divisors is an integer number (10120157661).

Almost surely, 2^20240315321 is an apocalyptic number.

It is an amenable number.

20240315321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20240315321 is an equidigital number, since it uses as much as digits as its factorization.

20240315321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20240315321 its reverse (12351304202), we get a palindrome (32591619523).

The spelling of 20240315321 in words is "twenty billion, two hundred forty million, three hundred fifteen thousand, three hundred twenty-one".