12024111231 has 32 divisors (see below), whose sum is σ = 19518624000. Its totient is φ = 7255196640.

The previous prime is 12024111227. The next prime is 12024111233. The reversal of 12024111231 is 13211142021.

12024111231 is a `hidden beast` number, since 1 + 20 + 2 + 411 + 1 + 231 = 666.

It is not a de Polignac number, because 12024111231 - 2² = 12024111227 is a prime.

It is a super-2 number, since 2×12024111231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12024111233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21756 + ... + 156593.

It is an arithmetic number, because the mean of its divisors is an integer number (609957000).

Almost surely, 2^12024111231 is an apocalyptic number.

12024111231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12024111231 is a deficient number, since it is larger than the sum of its proper divisors (7494512769).

12024111231 is a wasteful number, since it uses less digits than its factorization.

12024111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178596 (or 178590 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12024111231 its reverse (13211142021), we get a palindrome (25235253252).

The spelling of 12024111231 in words is "twelve billion, twenty-four million, one hundred eleven thousand, two hundred thirty-one".