420322404243 has 16 divisors (see below), whose sum is σ = 668338730496. Its totient is φ = 229741438080.

The previous prime is 420322404241. The next prime is 420322404251. The reversal of 420322404243 is 342404223024.

It is not a de Polignac number, because 420322404243 - 2¹ = 420322404241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420322404243.

It is not an unprimeable number, because it can be changed into a prime (420322404241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435115878 + ... + 435116843.

It is an arithmetic number, because the mean of its divisors is an integer number (41771170656).

Almost surely, 2^420322404243 is an apocalyptic number.

420322404243 is a deficient number, since it is larger than the sum of its proper divisors (248016326253).

420322404243 is a wasteful number, since it uses less digits than its factorization.

420322404243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870232754.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 420322404243 its reverse (342404223024), we get a palindrome (762726627267).

The spelling of 420322404243 in words is "four hundred twenty billion, three hundred twenty-two million, four hundred four thousand, two hundred forty-three".