2421332443 has 2 divisors, whose sum is σ = 2421332444. Its totient is φ = 2421332442.

The previous prime is 2421332413. The next prime is 2421332461. The reversal of 2421332443 is 3442331242.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421332443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2421332413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210666221 + 1210666222.

It is an arithmetic number, because the mean of its divisors is an integer number (1210666222).

Almost surely, 2^2421332443 is an apocalyptic number.

2421332443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421332443 is an equidigital number, since it uses as much as digits as its factorization.

2421332443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 28.

The square root of 2421332443 is about 49207.0365191809. The cubic root of 2421332443 is about 1342.8210492514.

Adding to 2421332443 its reverse (3442331242), we get a palindrome (5863663685).

The spelling of 2421332443 in words is "two billion, four hundred twenty-one million, three hundred thirty-two thousand, four hundred forty-three".