421333442533 has 8 divisors (see below), whose sum is σ = 447694155648. Its totient is φ = 395147884224.

The previous prime is 421333442531. The next prime is 421333442539. The reversal of 421333442533 is 335244333124.

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 421333442533 - 2¹ = 421333442531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421333442492 and 421333442501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421333442531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43783741 + ... + 43793362.

It is an arithmetic number, because the mean of its divisors is an integer number (55961769456).

Almost surely, 2^421333442533 is an apocalyptic number.

It is an amenable number.

421333442533 is a deficient number, since it is larger than the sum of its proper divisors (26360713115).

421333442533 is a wasteful number, since it uses less digits than its factorization.

421333442533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87577403.

The product of its digits is 311040, while the sum is 37.

Adding to 421333442533 its reverse (335244333124), we get a palindrome (756577775657).

The spelling of 421333442533 in words is "four hundred twenty-one billion, three hundred thirty-three million, four hundred forty-two thousand, five hundred thirty-three".