120424643 has 2 divisors, whose sum is σ = 120424644. Its totient is φ = 120424642.

The previous prime is 120424589. The next prime is 120424649. The reversal of 120424643 is 346424021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120424643 is a prime.

It is not a weakly prime, because it can be changed into another prime (120424649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60212321 + 60212322.

It is an arithmetic number, because the mean of its divisors is an integer number (60212322).

Almost surely, 2^120424643 is an apocalyptic number.

120424643 is a deficient number, since it is larger than the sum of its proper divisors (1).

120424643 is an equidigital number, since it uses as much as digits as its factorization.

120424643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 120424643 is about 10973.8162459556. The cubic root of 120424643 is about 493.8235408700.

Adding to 120424643 its reverse (346424021), we get a palindrome (466848664).

The spelling of 120424643 in words is "one hundred twenty million, four hundred twenty-four thousand, six hundred forty-three".