231341111340 has 48 divisors (see below), whose sum is σ = 652044906240. Its totient is φ = 61282411200.

The previous prime is 231341111333. The next prime is 231341111381. The reversal of 231341111340 is 43111143132.

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 231341111340.

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 15 ways as a sum of consecutive naturals, for example, 12758110 + ... + 12776229.

It is an arithmetic number, because the mean of its divisors is an integer number (13584268880).

Almost surely, 2^231341111340 is an apocalyptic number.

231341111340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231341111340 is an abundant number, since it is smaller than the sum of its proper divisors (420703794900).

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

231341111340 is a wasteful number, since it uses less digits than its factorization.

231341111340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25534502 (or 25534500 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 231341111340 its reverse (43111143132), we get a palindrome (274452254472).

The spelling of 231341111340 in words is "two hundred thirty-one billion, three hundred forty-one million, one hundred eleven thousand, three hundred forty".