320102113 has 4 divisors (see below), whose sum is σ = 320139540. Its totient is φ = 320064688.

The previous prime is 320102089. The next prime is 320102131. The reversal of 320102113 is 311201023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 232623504 + 87478609 = 15252^2 + 9353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320102113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320102093 and 320102102.

It is not an unprimeable number, because it can be changed into a prime (320102183) 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, 1131 + ... + 25327.

It is an arithmetic number, because the mean of its divisors is an integer number (80034885).

Almost surely, 2^320102113 is an apocalyptic number.

It is an amenable number.

320102113 is a deficient number, since it is larger than the sum of its proper divisors (37427).

320102113 is a wasteful number, since it uses less digits than its factorization.

320102113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37426.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 320102113 is about 17891.3977374603. The cubic root of 320102113 is about 684.0631254224.

Adding to 320102113 its reverse (311201023), we get a palindrome (631303136).

The spelling of 320102113 in words is "three hundred twenty million, one hundred two thousand, one hundred thirteen".