231144421315 has 8 divisors (see below), whose sum is σ = 277379973648. Its totient is φ = 184911091680.

The previous prime is 231144421303. The next prime is 231144421433. The reversal of 231144421315 is 513124441132.

It is a happy number.

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

It is not a de Polignac number, because 231144421315 - 2¹¹ = 231144419267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317616 + ... + 750445.

It is an arithmetic number, because the mean of its divisors is an integer number (34672496706).

Almost surely, 2^231144421315 is an apocalyptic number.

231144421315 is a deficient number, since it is larger than the sum of its proper divisors (46235552333).

231144421315 is a wasteful number, since it uses less digits than its factorization.

231144421315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111349.

The product of its digits is 11520, while the sum is 31.

Adding to 231144421315 its reverse (513124441132), we get a palindrome (744268862447).

The spelling of 231144421315 in words is "two hundred thirty-one billion, one hundred forty-four million, four hundred twenty-one thousand, three hundred fifteen".