231214032 has 120 divisors (see below), whose sum is σ = 771748224. Its totient is φ = 63182592.

The previous prime is 231214019. The next prime is 231214043. The reversal of 231214032 is 230412132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231213996 and 231214014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18198 + ... + 28170.

Almost surely, 2^231214032 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 231214032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385874112).

231214032 is an abundant number, since it is smaller than the sum of its proper divisors (540534192).

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

231214032 is a wasteful number, since it uses less digits than its factorization.

231214032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10017 (or 10008 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 231214032 is about 15205.7236592015. The cubic root of 231214032 is about 613.7686884884.

Adding to 231214032 its reverse (230412132), we get a palindrome (461626164).

The spelling of 231214032 in words is "two hundred thirty-one million, two hundred fourteen thousand, thirty-two".