320330003231 has 4 divisors (see below), whose sum is σ = 366091432272. Its totient is φ = 274568574192.

The previous prime is 320330003177. The next prime is 320330003233. The reversal of 320330003231 is 132300033023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132300033023 = 12823 ⋅10317401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320330003231 is a prime.

It is a super-2 number, since 2×320330003231² (a number of 24 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 (320330003233) 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, 22880714510 + ... + 22880714523.

It is an arithmetic number, because the mean of its divisors is an integer number (91522858068).

Almost surely, 2^320330003231 is an apocalyptic number.

320330003231 is a deficient number, since it is larger than the sum of its proper divisors (45761429041).

320330003231 is an equidigital number, since it uses as much as digits as its factorization.

320330003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45761429040.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 320330003231 its reverse (132300033023), we get a palindrome (452630036254).

The spelling of 320330003231 in words is "three hundred twenty billion, three hundred thirty million, three thousand, two hundred thirty-one".