231245443344431 has 8 divisors (see below), whose sum is σ = 234694143432000. Its totient is φ = 227809781821440.

The previous prime is 231245443344401. The next prime is 231245443344451. The reversal of 231245443344431 is 134443344542132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231245443344431 is a prime.

It is a super-2 number, since 2×231245443344431² (a number of 30 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 (231245443344401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3259605410 + ... + 3259676351.

It is an arithmetic number, because the mean of its divisors is an integer number (29336767929000).

Almost surely, 2^{231245443344431} is an apocalyptic number.

231245443344431 is a deficient number, since it is larger than the sum of its proper divisors (3448700087569).

231245443344431 is an equidigital number, since it uses as much as digits as its factorization.

231245443344431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6519282289.

The product of its digits is 6635520, while the sum is 47.

Adding to 231245443344431 its reverse (134443344542132), we get a palindrome (365688787886563).

The spelling of 231245443344431 in words is "two hundred thirty-one trillion, two hundred forty-five billion, four hundred forty-three million, three hundred forty-four thousand, four hundred thirty-one".