421203411443 has 8 divisors (see below), whose sum is σ = 435822466800. Its totient is φ = 406590676128.

The previous prime is 421203411413. The next prime is 421203411479. The reversal of 421203411443 is 344114302124.

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 421203411443 - 2¹⁴ = 421203395059 is a prime.

It is a super-2 number, since 2×421203411443² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421203411413) 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, 1444208 + ... + 1711181.

It is an arithmetic number, because the mean of its divisors is an integer number (54477808350).

Almost surely, 2^421203411443 is an apocalyptic number.

421203411443 is a deficient number, since it is larger than the sum of its proper divisors (14619055357).

421203411443 is a wasteful number, since it uses less digits than its factorization.

421203411443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160021.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 421203411443 its reverse (344114302124), we get a palindrome (765317713567).

The spelling of 421203411443 in words is "four hundred twenty-one billion, two hundred three million, four hundred eleven thousand, four hundred forty-three".