320113237 has 2 divisors, whose sum is σ = 320113238. Its totient is φ = 320113236.

The previous prime is 320113231. The next prime is 320113243. The reversal of 320113237 is 732311023.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (320113231) and next prime (320113243).

It can be written as a sum of positive squares in only one way, i.e., 318765316 + 1347921 = 17854^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 320113237 - 2¹¹ = 320111189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320113231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160056618 + 160056619.

It is an arithmetic number, because the mean of its divisors is an integer number (160056619).

Almost surely, 2^320113237 is an apocalyptic number.

It is an amenable number.

320113237 is a deficient number, since it is larger than the sum of its proper divisors (1).

320113237 is an equidigital number, since it uses as much as digits as its factorization.

320113237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 320113237 is about 17891.7086104150. The cubic root of 320113237 is about 684.0710493835.

The spelling of 320113237 in words is "three hundred twenty million, one hundred thirteen thousand, two hundred thirty-seven".