320333231231 has 12 divisors (see below), whose sum is σ = 364086401112. Its totient is φ = 280129461264.

The previous prime is 320333231227. The next prime is 320333231237. The reversal of 320333231231 is 132132333023.

It is a happy number.

It is not a de Polignac number, because 320333231231 - 2² = 320333231227 is a prime.

It is a super-2 number, since 2×320333231231² (a number of 24 digits) contains 22 as substring.

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 320333231231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320333231237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34124141 + ... + 34133526.

It is an arithmetic number, because the mean of its divisors is an integer number (30340533426).

Almost surely, 2^320333231231 is an apocalyptic number.

320333231231 is a deficient number, since it is larger than the sum of its proper divisors (43753169881).

320333231231 is a wasteful number, since it uses less digits than its factorization.

320333231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68257718 (or 68257699 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 320333231231 its reverse (132132333023), we get a palindrome (452465564254).

The spelling of 320333231231 in words is "three hundred twenty billion, three hundred thirty-three million, two hundred thirty-one thousand, two hundred thirty-one".