320232113 has 4 divisors (see below), whose sum is σ = 320268528. Its totient is φ = 320195700.

The previous prime is 320232091. The next prime is 320232119. The reversal of 320232113 is 311232023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320232113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320232091 and 320232100.

It is not an unprimeable number, because it can be changed into a prime (320232119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4070 + ... + 25632.

It is an arithmetic number, because the mean of its divisors is an integer number (80067132).

Almost surely, 2^320232113 is an apocalyptic number.

It is an amenable number.

320232113 is a deficient number, since it is larger than the sum of its proper divisors (36415).

320232113 is a wasteful number, since it uses less digits than its factorization.

320232113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36414.

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

The square root of 320232113 is about 17895.0303995271. The cubic root of 320232113 is about 684.1557168871.

Adding to 320232113 its reverse (311232023), we get a palindrome (631464136).

The spelling of 320232113 in words is "three hundred twenty million, two hundred thirty-two thousand, one hundred thirteen".