424121143243 has 16 divisors (see below), whose sum is σ = 499266904576. Its totient is φ = 352726617600.

The previous prime is 424121143241. The next prime is 424121143283. The reversal of 424121143243 is 342341121424.

It is a happy number.

It is not a de Polignac number, because 424121143243 - 2¹ = 424121143241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424121143241) 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, 4620246 + ... + 4711147.

It is an arithmetic number, because the mean of its divisors is an integer number (31204181536).

Almost surely, 2^424121143243 is an apocalyptic number.

424121143243 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

424121143243 is a deficient number, since it is larger than the sum of its proper divisors (75145761333).

424121143243 is a wasteful number, since it uses less digits than its factorization.

424121143243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331594.

The product of its digits is 18432, while the sum is 31.

Adding to 424121143243 its reverse (342341121424), we get a palindrome (766462264667).

The spelling of 424121143243 in words is "four hundred twenty-four billion, one hundred twenty-one million, one hundred forty-three thousand, two hundred forty-three".