231144424013 has 8 divisors (see below), whose sum is σ = 233578082400. Its totient is φ = 228723151248.

The previous prime is 231144423997. The next prime is 231144424081. The reversal of 231144424013 is 310424441132.

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

It is a cyclic number.

It is not a de Polignac number, because 231144424013 - 2⁴ = 231144423997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231144424213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3058883 + ... + 3133536.

It is an arithmetic number, because the mean of its divisors is an integer number (29197260300).

Almost surely, 2^231144424013 is an apocalyptic number.

It is an amenable number.

231144424013 is a deficient number, since it is larger than the sum of its proper divisors (2433658387).

231144424013 is a wasteful number, since it uses less digits than its factorization.

231144424013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6192811.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 231144424013 its reverse (310424441132), we get a palindrome (541568865145).

The spelling of 231144424013 in words is "two hundred thirty-one billion, one hundred forty-four million, four hundred twenty-four thousand, thirteen".