120421424443 has 2 divisors, whose sum is σ = 120421424444. Its totient is φ = 120421424442.

The previous prime is 120421424393. The next prime is 120421424447. The reversal of 120421424443 is 344424124021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120421424443 - 2²¹ = 120419327291 is a prime.

It is not a weakly prime, because it can be changed into another prime (120421424447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60210712221 + 60210712222.

It is an arithmetic number, because the mean of its divisors is an integer number (60210712222).

Almost surely, 2^120421424443 is an apocalyptic number.

120421424443 is a deficient number, since it is larger than the sum of its proper divisors (1).

120421424443 is an equidigital number, since it uses as much as digits as its factorization.

120421424443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 120421424443 its reverse (344424124021), we get a palindrome (464845548464).

The spelling of 120421424443 in words is "one hundred twenty billion, four hundred twenty-one million, four hundred twenty-four thousand, four hundred forty-three".