420311423421 has 12 divisors (see below), whose sum is σ = 620033873472. Its totient is φ = 274245751176.

The previous prime is 420311423401. The next prime is 420311423423. The reversal of 420311423421 is 124324113024.

420311423421 is a `hidden beast` number, since 4 + 2 + 0 + 311 + 4 + 2 + 342 + 1 = 666.

It is not a de Polignac number, because 420311423421 - 2⁷ = 420311423293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420311423423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496821591 + ... + 496822436.

It is an arithmetic number, because the mean of its divisors is an integer number (51669489456).

Almost surely, 2^420311423421 is an apocalyptic number.

It is an amenable number.

420311423421 is a deficient number, since it is larger than the sum of its proper divisors (199722450051).

420311423421 is a wasteful number, since it uses less digits than its factorization.

420311423421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993644080 (or 993644077 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 420311423421 its reverse (124324113024), we get a palindrome (544635536445).

The spelling of 420311423421 in words is "four hundred twenty billion, three hundred eleven million, four hundred twenty-three thousand, four hundred twenty-one".