231444343125 has 60 divisors (see below), whose sum is σ = 442325719836. Its totient is φ = 116175936000.

The previous prime is 231444343087. The next prime is 231444343153. The reversal of 231444343125 is 521343444132.

231444343125 is a `hidden beast` number, since 23 + 144 + 43 + 431 + 25 = 666.

231444343125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 10 ways, for example, as 175964309361 + 55480033764 = 419481^2 + 235542^2 .

It is not a de Polignac number, because 231444343125 - 2¹² = 231444339029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231444343125.

It is a congruent number.

It is an unprimeable number.

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 59 ways as a sum of consecutive naturals, for example, 1114542 + ... + 1305791.

Almost surely, 2^231444343125 is an apocalyptic number.

231444343125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231444343125 is a deficient number, since it is larger than the sum of its proper divisors (210881376711).

231444343125 is a wasteful number, since it uses less digits than its factorization.

231444343125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420376 (or 2420358 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

Adding to 231444343125 its reverse (521343444132), we get a palindrome (752787787257).

The spelling of 231444343125 in words is "two hundred thirty-one billion, four hundred forty-four million, three hundred forty-three thousand, one hundred twenty-five".