5531231320 has 32 divisors (see below), whose sum is σ = 12467117520. Its totient is φ = 2208608640.

The previous prime is 5531231317. The next prime is 5531231347. The reversal of 5531231320 is 231321355.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 98247 + ... + 143926.

Almost surely, 2^5531231320 is an apocalyptic number.

It is an amenable number.

5531231320 is an abundant number, since it is smaller than the sum of its proper divisors (6935886200).

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

5531231320 is a wasteful number, since it uses less digits than its factorization.

5531231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242755 (or 242751 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 5531231320 is about 74372.2483188454. The cubic root of 5531231320 is about 1768.5089979169.

Adding to 5531231320 its reverse (231321355), we get a palindrome (5762552675).

The spelling of 5531231320 in words is "five billion, five hundred thirty-one million, two hundred thirty-one thousand, three hundred twenty".