231335330805 has 64 divisors (see below), whose sum is σ = 421511040000. Its totient is φ = 120323105280.

The previous prime is 231335330789. The next prime is 231335330819. The reversal of 231335330805 is 508033533132.

231335330805 is a `hidden beast` number, since 2 + 313 + 3 + 5 + 330 + 8 + 0 + 5 = 666.

It is not a de Polignac number, because 231335330805 - 2⁴ = 231335330789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231335330805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1718071 + ... + 1847819.

It is an arithmetic number, because the mean of its divisors is an integer number (6586110000).

Almost surely, 2^231335330805 is an apocalyptic number.

It is an amenable number.

231335330805 is a deficient number, since it is larger than the sum of its proper divisors (190175709195).

231335330805 is a wasteful number, since it uses less digits than its factorization.

231335330805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130091 (or 130085 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

Adding to 231335330805 its reverse (508033533132), we get a palindrome (739368863937).

The spelling of 231335330805 in words is "two hundred thirty-one billion, three hundred thirty-five million, three hundred thirty thousand, eight hundred five".