231430233231 has 12 divisors (see below), whose sum is σ = 334503943800. Its totient is φ = 154187208720.

The previous prime is 231430233187. The next prime is 231430233233. The reversal of 231430233231 is 132332034132.

231430233231 is a `hidden beast` number, since 2 + 31 + 4 + 302 + 3 + 323 + 1 = 666.

231430233231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231430233231 - 2¹⁷ = 231430102159 is a prime.

It is a super-2 number, since 2×231430233231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231430233195 and 231430233204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231430233233) 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 11 ways as a sum of consecutive naturals, for example, 8286405 + ... + 8314286.

It is an arithmetic number, because the mean of its divisors is an integer number (27875328650).

Almost surely, 2^231430233231 is an apocalyptic number.

231430233231 is a deficient number, since it is larger than the sum of its proper divisors (103073710569).

231430233231 is a wasteful number, since it uses less digits than its factorization.

231430233231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16602246 (or 16602243 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 231430233231 its reverse (132332034132), we get a palindrome (363762267363).

The spelling of 231430233231 in words is "two hundred thirty-one billion, four hundred thirty million, two hundred thirty-three thousand, two hundred thirty-one".