2420066321 has 2 divisors, whose sum is σ = 2420066322. Its totient is φ = 2420066320.

The previous prime is 2420066291. The next prime is 2420066323. The reversal of 2420066321 is 1236600242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1903140625 + 516925696 = 43625^2 + 22736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2420066321 is a prime.

Together with 2420066323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2420066323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210033160 + 1210033161.

It is an arithmetic number, because the mean of its divisors is an integer number (1210033161).

Almost surely, 2^2420066321 is an apocalyptic number.

It is an amenable number.

2420066321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420066321 is an equidigital number, since it uses as much as digits as its factorization.

2420066321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2420066321 is about 49194.1695833968. The cubic root of 2420066321 is about 1342.5869533915.

Adding to 2420066321 its reverse (1236600242), we get a palindrome (3656666563).

The spelling of 2420066321 in words is "two billion, four hundred twenty million, sixty-six thousand, three hundred twenty-one".