420522023 has 2 divisors, whose sum is σ = 420522024. Its totient is φ = 420522022.

The previous prime is 420522001. The next prime is 420522043. The reversal of 420522023 is 320225024.

It is an a-pointer prime, because the next prime (420522043) can be obtained adding 420522023 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420522023 - 2⁸ = 420521767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420521986 and 420522004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420522043) 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, 210261011 + 210261012.

It is an arithmetic number, because the mean of its divisors is an integer number (210261012).

Almost surely, 2^420522023 is an apocalyptic number.

420522023 is a deficient number, since it is larger than the sum of its proper divisors (1).

420522023 is an equidigital number, since it uses as much as digits as its factorization.

420522023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 420522023 is about 20506.6336340219. The cubic root of 420522023 is about 749.1973772205.

Adding to 420522023 its reverse (320225024), we get a palindrome (740747047).

The spelling of 420522023 in words is "four hundred twenty million, five hundred twenty-two thousand, twenty-three".