231403014 has 64 divisors (see below), whose sum is σ = 573177600. Its totient is φ = 68770944.

The previous prime is 231403013. The next prime is 231403021. The reversal of 231403014 is 410304132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231403013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10809 + ... + 24075.

It is an arithmetic number, because the mean of its divisors is an integer number (8955900).

Almost surely, 2^231403014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231403014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286588800).

231403014 is an abundant number, since it is smaller than the sum of its proper divisors (341774586).

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

231403014 is a wasteful number, since it uses less digits than its factorization.

231403014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13314 (or 13308 counting only the distinct ones).

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

The square root of 231403014 is about 15211.9365631073. The cubic root of 231403014 is about 613.9358635310.

Adding to 231403014 its reverse (410304132), we get a palindrome (641707146).

The spelling of 231403014 in words is "two hundred thirty-one million, four hundred three thousand, fourteen".