320031413 has 24 divisors (see below), whose sum is σ = 362533248. Its totient is φ = 282102912.

The previous prime is 320031401. The next prime is 320031419. The reversal of 320031413 is 314130023.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-320031413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320031391 and 320031400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320031419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 341081 + ... + 342017.

It is an arithmetic number, because the mean of its divisors is an integer number (15105552).

Almost surely, 2^320031413 is an apocalyptic number.

It is an amenable number.

320031413 is a deficient number, since it is larger than the sum of its proper divisors (42501835).

320031413 is a wasteful number, since it uses less digits than its factorization.

320031413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 320031413 is about 17889.4218184937. The cubic root of 320031413 is about 684.0127593860.

Adding to 320031413 its reverse (314130023), we get a palindrome (634161436).

The spelling of 320031413 in words is "three hundred twenty million, thirty-one thousand, four hundred thirteen".