231201324443 has 4 divisors (see below), whose sum is σ = 231560891688. Its totient is φ = 230841757200.

The previous prime is 231201324439. The next prime is 231201324511. The reversal of 231201324443 is 344423102132.

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 231201324443 - 2² = 231201324439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231201324643) 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, 179782658 + ... + 179783943.

It is an arithmetic number, because the mean of its divisors is an integer number (57890222922).

Almost surely, 2^231201324443 is an apocalyptic number.

231201324443 is a deficient number, since it is larger than the sum of its proper divisors (359567245).

231201324443 is an equidigital number, since it uses as much as digits as its factorization.

231201324443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359567244.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 231201324443 its reverse (344423102132), we get a palindrome (575624426575).

The spelling of 231201324443 in words is "two hundred thirty-one billion, two hundred one million, three hundred twenty-four thousand, four hundred forty-three".