231122032 has 20 divisors (see below), whose sum is σ = 467269200. Its totient is φ = 110536448.

The previous prime is 231122027. The next prime is 231122063. The reversal of 231122032 is 230221132.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 231121997 and 231122015.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 313657 + ... + 314392.

It is an arithmetic number, because the mean of its divisors is an integer number (23363460).

Almost surely, 2^231122032 is an apocalyptic number.

It is an amenable number.

231122032 is an abundant number, since it is smaller than the sum of its proper divisors (236147168).

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

231122032 is a wasteful number, since it uses less digits than its factorization.

231122032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628080 (or 628074 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231122032 is about 15202.6981815729. The cubic root of 231122032 is about 613.6872715579.

Adding to 231122032 its reverse (230221132), we get a palindrome (461343164).

The spelling of 231122032 in words is "two hundred thirty-one million, one hundred twenty-two thousand, thirty-two".