231201424 has 20 divisors (see below), whose sum is σ = 471529840. Its totient is φ = 109516320.

The previous prime is 231201409. The next prime is 231201431. The reversal of 231201424 is 424102132.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379962 + ... + 380569.

It is an arithmetic number, because the mean of its divisors is an integer number (23576492).

Almost surely, 2^231201424 is an apocalyptic number.

It is an amenable number.

231201424 is an abundant number, since it is smaller than the sum of its proper divisors (240328416).

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

231201424 is a wasteful number, since it uses less digits than its factorization.

231201424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760558 (or 760552 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 231201424 is about 15205.3090728206. The cubic root of 231201424 is about 613.7575321063.

Adding to 231201424 its reverse (424102132), we get a palindrome (655303556).

The spelling of 231201424 in words is "two hundred thirty-one million, two hundred one thousand, four hundred twenty-four".