42023220073 has 2 divisors, whose sum is σ = 42023220074. Its totient is φ = 42023220072.

The previous prime is 42023219969. The next prime is 42023220079. The reversal of 42023220073 is 37002232024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31204515904 + 10818704169 = 176648^2 + 104013^2 .

It is a cyclic number.

It is not a de Polignac number, because 42023220073 - 2²¹ = 42021122921 is a prime.

It is not a weakly prime, because it can be changed into another prime (42023220079) 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, 21011610036 + 21011610037.

It is an arithmetic number, because the mean of its divisors is an integer number (21011610037).

Almost surely, 2^42023220073 is an apocalyptic number.

It is an amenable number.

42023220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42023220073 is an equidigital number, since it uses as much as digits as its factorization.

42023220073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 25.

Adding to 42023220073 its reverse (37002232024), we get a palindrome (79025452097).

The spelling of 42023220073 in words is "forty-two billion, twenty-three million, two hundred twenty thousand, seventy-three".