320131200122 has 16 divisors (see below), whose sum is σ = 508861521000. Its totient is φ = 150526169088.

The previous prime is 320131200079. The next prime is 320131200149. The reversal of 320131200122 is 221002131023.

It can be written as a sum of positive squares in 4 ways, for example, as 216570167641 + 103561032481 = 465371^2 + 321809^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 320131200122.

It is an unprimeable number.

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, 3826997 + ... + 3909752.

Almost surely, 2^320131200122 is an apocalyptic number.

320131200122 is a deficient number, since it is larger than the sum of its proper divisors (188730320878).

320131200122 is a wasteful number, since it uses less digits than its factorization.

320131200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7737985.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 320131200122 its reverse (221002131023), we get a palindrome (541133331145).

The spelling of 320131200122 in words is "three hundred twenty billion, one hundred thirty-one million, two hundred thousand, one hundred twenty-two".