420320623163 has 16 divisors (see below), whose sum is σ = 509504854464. Its totient is φ = 338494464000.

The previous prime is 420320623111. The next prime is 420320623199. The reversal of 420320623163 is 361326023024.

It is not a de Polignac number, because 420320623163 - 2¹² = 420320619067 is a prime.

It is a super-2 number, since 2×420320623163² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420320623763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2992088 + ... + 3129413.

It is an arithmetic number, because the mean of its divisors is an integer number (31844053404).

Almost surely, 2^420320623163 is an apocalyptic number.

420320623163 is a deficient number, since it is larger than the sum of its proper divisors (89184231301).

420320623163 is a wasteful number, since it uses less digits than its factorization.

420320623163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6122102.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 420320623163 its reverse (361326023024), we get a palindrome (781646646187).

The spelling of 420320623163 in words is "four hundred twenty billion, three hundred twenty million, six hundred twenty-three thousand, one hundred sixty-three".