420321423323 has 4 divisors (see below), whose sum is σ = 424177583280. Its totient is φ = 416465263368.

The previous prime is 420321423317. The next prime is 420321423331. The reversal of 420321423323 is 323324123024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420321423323 - 2¹² = 420321419227 is a prime.

It is a super-3 number, since 3×420321423323³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420321443323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928079815 + ... + 1928080032.

It is an arithmetic number, because the mean of its divisors is an integer number (106044395820).

Almost surely, 2^420321423323 is an apocalyptic number.

420321423323 is a deficient number, since it is larger than the sum of its proper divisors (3856159957).

420321423323 is a wasteful number, since it uses less digits than its factorization.

420321423323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856159956.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 420321423323 its reverse (323324123024), we get a palindrome (743645546347).

The spelling of 420321423323 in words is "four hundred twenty billion, three hundred twenty-one million, four hundred twenty-three thousand, three hundred twenty-three".