42231220573 has 2 divisors, whose sum is σ = 42231220574. Its totient is φ = 42231220572.

The previous prime is 42231220519. The next prime is 42231220579. The reversal of 42231220573 is 37502213224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28340712409 + 13890508164 = 168347^2 + 117858^2 .

It is a cyclic number.

It is not a de Polignac number, because 42231220573 - 2⁹ = 42231220061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42231220579) 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, 21115610286 + 21115610287.

It is an arithmetic number, because the mean of its divisors is an integer number (21115610287).

Almost surely, 2^42231220573 is an apocalyptic number.

It is an amenable number.

42231220573 is a deficient number, since it is larger than the sum of its proper divisors (1).

42231220573 is an equidigital number, since it uses as much as digits as its factorization.

42231220573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 42231220573 its reverse (37502213224), we get a palindrome (79733433797).

The spelling of 42231220573 in words is "forty-two billion, two hundred thirty-one million, two hundred twenty thousand, five hundred seventy-three".