320331100131 has 12 divisors (see below), whose sum is σ = 528800546352. Its totient is φ = 183046342896.

The previous prime is 320331100127. The next prime is 320331100163. The reversal of 320331100131 is 131001133023.

It is a happy number.

320331100131 is a `hidden beast` number, since 320 + 3 + 311 + 0 + 0 + 1 + 31 = 666.

It is not a de Polignac number, because 320331100131 - 2² = 320331100127 is a prime.

It is a super-2 number, since 2×320331100131² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320331100121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2542310256 + ... + 2542310381.

It is an arithmetic number, because the mean of its divisors is an integer number (44066712196).

Almost surely, 2^320331100131 is an apocalyptic number.

320331100131 is a deficient number, since it is larger than the sum of its proper divisors (208469446221).

320331100131 is a wasteful number, since it uses less digits than its factorization.

320331100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084620650 (or 5084620647 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 320331100131 its reverse (131001133023), we get a palindrome (451332233154).

The spelling of 320331100131 in words is "three hundred twenty billion, three hundred thirty-one million, one hundred thousand, one hundred thirty-one".