231313310340 has 96 divisors (see below), whose sum is σ = 740548026624. Its totient is φ = 52846940160.

The previous prime is 231313310329. The next prime is 231313310369. The reversal of 231313310340 is 43013313132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231313310340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 780192 + ... + 1035048.

It is an arithmetic number, because the mean of its divisors is an integer number (7714041944).

Almost surely, 2^231313310340 is an apocalyptic number.

231313310340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231313310340 is an abundant number, since it is smaller than the sum of its proper divisors (509234716284).

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

231313310340 is a wasteful number, since it uses less digits than its factorization.

231313310340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257037 (or 257035 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231313310340 its reverse (43013313132), we get a palindrome (274326623472).

The spelling of 231313310340 in words is "two hundred thirty-one billion, three hundred thirteen million, three hundred ten thousand, three hundred forty".