231332727284 has 18 divisors (see below), whose sum is σ = 418801384470. Its totient is φ = 111675367552.

The previous prime is 231332727217. The next prime is 231332727289. The reversal of 231332727284 is 482727233132.

231332727284 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 3 ways, for example, as 39155702884 + 192177024400 = 197878^2 + 438380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231332727289) 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 5 ways as a sum of consecutive naturals, for example, 5157884 + ... + 5202540.

Almost surely, 2^231332727284 is an apocalyptic number.

It is an amenable number.

231332727284 is a deficient number, since it is larger than the sum of its proper divisors (187468657186).

231332727284 is an frugal number, since it uses more digits than its factorization.

231332727284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89347 (or 44688 counting only the distinct ones).

The product of its digits is 677376, while the sum is 44.

The spelling of 231332727284 in words is "two hundred thirty-one billion, three hundred thirty-two million, seven hundred twenty-seven thousand, two hundred eighty-four".