231224140168 has 32 divisors (see below), whose sum is σ = 498636244800. Its totient is φ = 98464871232.

The previous prime is 231224140159. The next prime is 231224140171. The reversal of 231224140168 is 861041422132.

It is a super-2 number, since 2×231224140168² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13140898 + ... + 13158481.

It is an arithmetic number, because the mean of its divisors is an integer number (15582382650).

Almost surely, 2^231224140168 is an apocalyptic number.

231224140168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231224140168 is an abundant number, since it is smaller than the sum of its proper divisors (267412104632).

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

231224140168 is a wasteful number, since it uses less digits than its factorization.

231224140168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26299549 (or 26299545 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 231224140168 in words is "two hundred thirty-one billion, two hundred twenty-four million, one hundred forty thousand, one hundred sixty-eight".