320002120310231 has 4 divisors (see below), whose sum is σ = 322833997481232. Its totient is φ = 317170243139232.

The previous prime is 320002120310149. The next prime is 320002120310233. The reversal of 320002120310231 is 132013021200023.

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

It is a cyclic number.

It is not a de Polignac number, because 320002120310231 - 2²⁶ = 320002053201367 is a prime.

It is a super-2 number, since 2×320002120310231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320002120310233) 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, 1415938585331 + ... + 1415938585556.

It is an arithmetic number, because the mean of its divisors is an integer number (80708499370308).

Almost surely, 2^{320002120310231} is an apocalyptic number.

320002120310231 is a deficient number, since it is larger than the sum of its proper divisors (2831877171001).

320002120310231 is a wasteful number, since it uses less digits than its factorization.

320002120310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831877171000.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 320002120310231 its reverse (132013021200023), we get a palindrome (452015141510254).

The spelling of 320002120310231 in words is "three hundred twenty trillion, two billion, one hundred twenty million, three hundred ten thousand, two hundred thirty-one".