421432323051143 has 4 divisors (see below), whose sum is σ = 424508471394720. Its totient is φ = 418356174707568.

The previous prime is 421432323051133. The next prime is 421432323051191. The reversal of 421432323051143 is 341150323234124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421432323051143 - 2⁴ = 421432323051127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421432323051097 and 421432323051106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421432323051133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538074171583 + ... + 1538074171856.

It is an arithmetic number, because the mean of its divisors is an integer number (106127117848680).

Almost surely, 2^{421432323051143} is an apocalyptic number.

421432323051143 is a deficient number, since it is larger than the sum of its proper divisors (3076148343577).

421432323051143 is a wasteful number, since it uses less digits than its factorization.

421432323051143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076148343576.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 421432323051143 its reverse (341150323234124), we get a palindrome (762582646285267).

The spelling of 421432323051143 in words is "four hundred twenty-one trillion, four hundred thirty-two billion, three hundred twenty-three million, fifty-one thousand, one hundred forty-three".