320231211303 has 4 divisors (see below), whose sum is σ = 426974948408. Its totient is φ = 213487474200.

The previous prime is 320231211283. The next prime is 320231211319. The reversal of 320231211303 is 303112132023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303112132023 = 3 ⋅101037377341.

It is not a de Polignac number, because 320231211303 - 2³⁴ = 303051342119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320231211303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320231211383) 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, 53371868548 + ... + 53371868553.

It is an arithmetic number, because the mean of its divisors is an integer number (106743737102).

Almost surely, 2^320231211303 is an apocalyptic number.

320231211303 is a deficient number, since it is larger than the sum of its proper divisors (106743737105).

320231211303 is a wasteful number, since it uses less digits than its factorization.

320231211303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106743737104.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 320231211303 its reverse (303112132023), we get a palindrome (623343343326).

The spelling of 320231211303 in words is "three hundred twenty billion, two hundred thirty-one million, two hundred eleven thousand, three hundred three".