320413131 has 48 divisors (see below), whose sum is σ = 509137920. Its totient is φ = 199085040.

The previous prime is 320413111. The next prime is 320413151. The reversal of 320413131 is 131314023.

It is an interprime number because it is at equal distance from previous prime (320413111) and next prime (320413151).

It is not a de Polignac number, because 320413131 - 2⁵ = 320413099 is a prime.

It is a super-2 number, since 2×320413131² = 205329149034446322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320413111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 691806 + ... + 692268.

It is an arithmetic number, because the mean of its divisors is an integer number (10607040).

Almost surely, 2^320413131 is an apocalyptic number.

320413131 is a deficient number, since it is larger than the sum of its proper divisors (188724789).

320413131 is a wasteful number, since it uses less digits than its factorization.

320413131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 320413131 is about 17900.0874578869. The cubic root of 320413131 is about 684.2846037857.

Adding to 320413131 its reverse (131314023), we get a palindrome (451727154).

The spelling of 320413131 in words is "three hundred twenty million, four hundred thirteen thousand, one hundred thirty-one".