231223234032 has 120 divisors (see below), whose sum is σ = 740566934016. Its totient is φ = 65972700288.

The previous prime is 231223234013. The next prime is 231223234097. The reversal of 231223234032 is 230432322132.

231223234032 is a `hidden beast` number, since 2 + 31 + 223 + 2 + 3 + 403 + 2 = 666.

231223234032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231223233987 and 231223234005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 575053 + ... + 890579.

Almost surely, 2^231223234032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231223234032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370283467008).

231223234032 is an abundant number, since it is smaller than the sum of its proper divisors (509343699984).

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

231223234032 is a wasteful number, since it uses less digits than its factorization.

231223234032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316275 (or 316266 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 231223234032 its reverse (230432322132), we get a palindrome (461655556164).

The spelling of 231223234032 in words is "two hundred thirty-one billion, two hundred twenty-three million, two hundred thirty-four thousand, thirty-two".