12442312311 has 32 divisors (see below), whose sum is σ = 19683095040. Its totient is φ = 6891792000.

The previous prime is 12442312261. The next prime is 12442312321. The reversal of 12442312311 is 11321324421.

It is not a de Polignac number, because 12442312311 - 2⁶ = 12442312247 is a prime.

It is a super-2 number, since 2×12442312311² (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 (12442312321) 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, 100251 + ... + 186908.

It is an arithmetic number, because the mean of its divisors is an integer number (615096720).

Almost surely, 2^12442312311 is an apocalyptic number.

12442312311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12442312311 is a deficient number, since it is larger than the sum of its proper divisors (7240782729).

12442312311 is a wasteful number, since it uses less digits than its factorization.

12442312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287287.

The product of its digits is 1152, while the sum is 24.

Adding to 12442312311 its reverse (11321324421), we get a palindrome (23763636732).

The spelling of 12442312311 in words is "twelve billion, four hundred forty-two million, three hundred twelve thousand, three hundred eleven".