424321012021 has 8 divisors (see below), whose sum is σ = 424538452800. Its totient is φ = 424103634240.

The previous prime is 424321012009. The next prime is 424321012091. The reversal of 424321012021 is 120210123424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 424321012021 - 2¹³ = 424321003829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424321011983 and 424321012001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424321012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18624525 + ... + 18647293.

It is an arithmetic number, because the mean of its divisors is an integer number (53067306600).

Almost surely, 2^424321012021 is an apocalyptic number.

It is an amenable number.

424321012021 is a deficient number, since it is larger than the sum of its proper divisors (217440779).

424321012021 is a wasteful number, since it uses less digits than its factorization.

424321012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31499.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 424321012021 its reverse (120210123424), we get a palindrome (544531135445).

The spelling of 424321012021 in words is "four hundred twenty-four billion, three hundred twenty-one million, twelve thousand, twenty-one".