143421444244431 has 6 divisors (see below), whose sum is σ = 207164308353080. Its totient is φ = 95614296162948.

The previous prime is 143421444244417. The next prime is 143421444244489. The reversal of 143421444244431 is 134442444124341.

143421444244431 is a `hidden beast` number, since 1 + 4 + 3 + 4 + 214 + 4 + 424 + 4 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 143421444244431 - 2¹⁴ = 143421444228047 is a prime.

It is a super-2 number, since 2×143421444244431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143421844244431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7967858013571 + ... + 7967858013588.

Almost surely, 2^{143421444244431} is an apocalyptic number.

143421444244431 is a deficient number, since it is larger than the sum of its proper divisors (63742864108649).

143421444244431 is a wasteful number, since it uses less digits than its factorization.

143421444244431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15935716027165 (or 15935716027162 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 45.

Adding to 143421444244431 its reverse (134442444124341), we get a palindrome (277863888368772).

The spelling of 143421444244431 in words is "one hundred forty-three trillion, four hundred twenty-one billion, four hundred forty-four million, two hundred forty-four thousand, four hundred thirty-one".