320311232003113 has 4 divisors (see below), whose sum is σ = 344950557541828. Its totient is φ = 295671906464400.

The previous prime is 320311232003071. The next prime is 320311232003129. The reversal of 320311232003113 is 311300232113023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183388282820649 + 136922949182464 = 13542093^2 + 11701408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320311232003113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320311232003173) 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, 12319662769338 + ... + 12319662769363.

It is an arithmetic number, because the mean of its divisors is an integer number (86237639385457).

Almost surely, 2^{320311232003113} is an apocalyptic number.

It is an amenable number.

320311232003113 is a deficient number, since it is larger than the sum of its proper divisors (24639325538715).

320311232003113 is a wasteful number, since it uses less digits than its factorization.

320311232003113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24639325538714.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 320311232003113 its reverse (311300232113023), we get a palindrome (631611464116136).

The spelling of 320311232003113 in words is "three hundred twenty trillion, three hundred eleven billion, two hundred thirty-two million, three thousand, one hundred thirteen".