12303320231 has 4 divisors (see below), whose sum is σ = 12385893000. Its totient is φ = 12220747464.

The previous prime is 12303320213. The next prime is 12303320279. The reversal of 12303320231 is 13202330321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13202330321 = 90917 ⋅145213.

It is a cyclic number.

It is not a de Polignac number, because 12303320231 - 2⁶ = 12303320167 is a prime.

It is a super-2 number, since 2×12303320231² (a number of 21 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 (12303320531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41286161 + ... + 41286458.

It is an arithmetic number, because the mean of its divisors is an integer number (3096473250).

Almost surely, 2^12303320231 is an apocalyptic number.

12303320231 is a deficient number, since it is larger than the sum of its proper divisors (82572769).

12303320231 is an equidigital number, since it uses as much as digits as its factorization.

12303320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82572768.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12303320231 its reverse (13202330321), we get a palindrome (25505650552).

The spelling of 12303320231 in words is "twelve billion, three hundred three million, three hundred twenty thousand, two hundred thirty-one".