4243434331231 has 4 divisors (see below), whose sum is σ = 4243444880472. Its totient is φ = 4243423781992.

The previous prime is 4243434331229. The next prime is 4243434331261. The reversal of 4243434331231 is 1321334343424.

4243434331231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4243434331231 - 2¹ = 4243434331229 is a prime.

It is a super-2 number, since 2×4243434331231² (a number of 26 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 (4243434331261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4646296 + ... + 5484061.

It is an arithmetic number, because the mean of its divisors is an integer number (1060861220118).

Almost surely, 2^{4243434331231} is an apocalyptic number.

4243434331231 is a deficient number, since it is larger than the sum of its proper divisors (10549241).

4243434331231 is a wasteful number, since it uses less digits than its factorization.

4243434331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10549240.

The product of its digits is 248832, while the sum is 37.

Adding to 4243434331231 its reverse (1321334343424), we get a palindrome (5564768674655).

It can be divided in two parts, 424343 and 4331231, that added together give a palindrome (4755574).

The spelling of 4243434331231 in words is "four trillion, two hundred forty-three billion, four hundred thirty-four million, three hundred thirty-one thousand, two hundred thirty-one".