231120032 has 96 divisors (see below), whose sum is σ = 566201664. Its totient is φ = 91238400.

The previous prime is 231120023. The next prime is 231120037. The reversal of 231120032 is 230021132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231119989 and 231120016.

It is not an unprimeable number, because it can be changed into a prime (231120037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76307 + ... + 79277.

It is an arithmetic number, because the mean of its divisors is an integer number (5897934).

Almost surely, 2^231120032 is an apocalyptic number.

231120032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231120032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283100832).

231120032 is an abundant number, since it is smaller than the sum of its proper divisors (335081632).

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

231120032 is a wasteful number, since it uses less digits than its factorization.

231120032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022 (or 3014 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 231120032 is about 15202.6324036333. The cubic root of 231120032 is about 613.6855013847.

Adding to 231120032 its reverse (230021132), we get a palindrome (461141164).

The spelling of 231120032 in words is "two hundred thirty-one million, one hundred twenty thousand, thirty-two".