20433043 has 2 divisors, whose sum is σ = 20433044. Its totient is φ = 20433042.

The previous prime is 20433013. The next prime is 20433067. The reversal of 20433043 is 34033402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20433043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20433043.

It is not a weakly prime, because it can be changed into another prime (20433013) 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, 10216521 + 10216522.

It is an arithmetic number, because the mean of its divisors is an integer number (10216522).

Almost surely, 2^20433043 is an apocalyptic number.

20433043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20433043 is an equidigital number, since it uses as much as digits as its factorization.

20433043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 20433043 is about 4520.2923578016. The cubic root of 20433043 is about 273.3868890035.

Adding to 20433043 its reverse (34033402), we get a palindrome (54466445).

The spelling of 20433043 in words is "twenty million, four hundred thirty-three thousand, forty-three".