12066320231 has 16 divisors (see below), whose sum is σ = 14995895616. Its totient is φ = 9471085056.

The previous prime is 12066320183. The next prime is 12066320339. The reversal of 12066320231 is 13202366021.

It is a cyclic number.

It is not a de Polignac number, because 12066320231 - 2¹⁸ = 12066058087 is a prime.

It is a super-2 number, since 2×12066320231² (a number of 21 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 12066320231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12066323231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365836 + ... + 1374641.

It is an arithmetic number, because the mean of its divisors is an integer number (937243476).

Almost surely, 2^12066320231 is an apocalyptic number.

12066320231 is a deficient number, since it is larger than the sum of its proper divisors (2929575385).

12066320231 is a wasteful number, since it uses less digits than its factorization.

12066320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740538.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12066320231 its reverse (13202366021), we get a palindrome (25268686252).

The spelling of 12066320231 in words is "twelve billion, sixty-six million, three hundred twenty thousand, two hundred thirty-one".