421342533041443 has 16 divisors (see below), whose sum is σ = 453990151014400. Its totient is φ = 388728762314400.

The previous prime is 421342533041411. The next prime is 421342533041477. The reversal of 421342533041443 is 344140335243124.

It is a cyclic number.

It is not a de Polignac number, because 421342533041443 - 2⁵ = 421342533041411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421342533041443.

It is not an unprimeable number, because it can be changed into a prime (421342533011443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256492978 + ... + 258130456.

It is an arithmetic number, because the mean of its divisors is an integer number (28374384438400).

Almost surely, 2^{421342533041443} is an apocalyptic number.

421342533041443 is a deficient number, since it is larger than the sum of its proper divisors (32647617972957).

421342533041443 is a wasteful number, since it uses less digits than its factorization.

421342533041443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647802.

The product of its (nonzero) digits is 1658880, while the sum is 43.

Adding to 421342533041443 its reverse (344140335243124), we get a palindrome (765482868284567).

The spelling of 421342533041443 in words is "four hundred twenty-one trillion, three hundred forty-two billion, five hundred thirty-three million, forty-one thousand, four hundred forty-three".