12023112311 has 12 divisors (see below), whose sum is σ = 14012943840. Its totient is φ = 10285722720.

The previous prime is 12023112287. The next prime is 12023112313. The reversal of 12023112311 is 11321132021.

It is not a de Polignac number, because 12023112311 - 2¹⁸ = 12022850167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12023112311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023112313) 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, 209951 + ... + 261008.

It is an arithmetic number, because the mean of its divisors is an integer number (1167745320).

Almost surely, 2^12023112311 is an apocalyptic number.

12023112311 is a deficient number, since it is larger than the sum of its proper divisors (1989831529).

12023112311 is an equidigital number, since it uses as much as digits as its factorization.

12023112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471494 (or 471487 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12023112311 its reverse (11321132021), we get a palindrome (23344244332).

The spelling of 12023112311 in words is "twelve billion, twenty-three million, one hundred twelve thousand, three hundred eleven".