20443430963 has 2 divisors, whose sum is σ = 20443430964. Its totient is φ = 20443430962.

The previous prime is 20443430921. The next prime is 20443431023. The reversal of 20443430963 is 36903434402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20443430963 - 2¹⁶ = 20443365427 is a prime.

It is not a weakly prime, because it can be changed into another prime (20443430263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221715481 + 10221715482.

It is an arithmetic number, because the mean of its divisors is an integer number (10221715482).

Almost surely, 2^20443430963 is an apocalyptic number.

20443430963 is a deficient number, since it is larger than the sum of its proper divisors (1).

20443430963 is an equidigital number, since it uses as much as digits as its factorization.

20443430963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 20443430963 in words is "twenty billion, four hundred forty-three million, four hundred thirty thousand, nine hundred sixty-three".