231420324 has 48 divisors (see below), whose sum is σ = 554227520. Its totient is φ = 75116160.

The previous prime is 231420253. The next prime is 231420401. The reversal of 231420324 is 423024132.

231420324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231420324.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278742 + ... + 279570.

Almost surely, 2^231420324 is an apocalyptic number.

It is an amenable number.

231420324 is an abundant number, since it is smaller than the sum of its proper divisors (322807196).

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

231420324 is a wasteful number, since it uses less digits than its factorization.

231420324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 231420324 is about 15212.5055135569. The cubic root of 231420324 is about 613.9511715495.

Adding to 231420324 its reverse (423024132), we get a palindrome (654444456).

The spelling of 231420324 in words is "two hundred thirty-one million, four hundred twenty thousand, three hundred twenty-four".