331201232 has 10 divisors (see below), whose sum is σ = 641702418. Its totient is φ = 165600608.

The previous prime is 331201231. The next prime is 331201237. The reversal of 331201232 is 232102133.

It can be written as a sum of positive squares in only one way, i.e., 255232576 + 75968656 = 15976^2 + 8716^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 331201232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331201231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10350023 + ... + 10350054.

Almost surely, 2^331201232 is an apocalyptic number.

It is an amenable number.

331201232 is a deficient number, since it is larger than the sum of its proper divisors (310501186).

331201232 is a wasteful number, since it uses less digits than its factorization.

331201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20700085 (or 20700079 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 331201232 is about 18198.9349138899. The cubic root of 331201232 is about 691.8797946842.

Adding to 331201232 its reverse (232102133), we get a palindrome (563303365).

Subtracting from 331201232 its reverse (232102133), we obtain a palindrome (99099099).

The spelling of 331201232 in words is "three hundred thirty-one million, two hundred one thousand, two hundred thirty-two".