231312102444 has 72 divisors (see below), whose sum is σ = 604727061120. Its totient is φ = 74473401600.

The previous prime is 231312102433. The next prime is 231312102457. The reversal of 231312102444 is 444201213132.

231312102444 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 1 + 210 + 2 + 444 = 666.

231312102444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 382522 + ... + 780350.

It is an arithmetic number, because the mean of its divisors is an integer number (8398986960).

Almost surely, 2^231312102444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231312102444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302363530560).

231312102444 is an abundant number, since it is smaller than the sum of its proper divisors (373414958676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231312102444 is a wasteful number, since it uses less digits than its factorization.

231312102444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398391 (or 398386 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 231312102444 its reverse (444201213132), we get a palindrome (675513315576).

The spelling of 231312102444 in words is "two hundred thirty-one billion, three hundred twelve million, one hundred two thousand, four hundred forty-four".