320131212243 has 8 divisors (see below), whose sum is σ = 451949946768. Its totient is φ = 200866642944.

The previous prime is 320131212187. The next prime is 320131212253. The reversal of 320131212243 is 342212131023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320131212243 - 2¹⁰ = 320131211219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320131212253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3138541246 + ... + 3138541347.

It is an arithmetic number, because the mean of its divisors is an integer number (56493743346).

Almost surely, 2^320131212243 is an apocalyptic number.

320131212243 is a deficient number, since it is larger than the sum of its proper divisors (131818734525).

320131212243 is a wasteful number, since it uses less digits than its factorization.

320131212243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6277082613.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 320131212243 its reverse (342212131023), we get a palindrome (662343343266).

The spelling of 320131212243 in words is "three hundred twenty billion, one hundred thirty-one million, two hundred twelve thousand, two hundred forty-three".