12311243142224 has 40 divisors (see below), whose sum is σ = 27198934234920. Its totient is φ = 5347870322688.

The previous prime is 12311243142223. The next prime is 12311243142227. The reversal of 12311243142224 is 42224134211321.

It can be written as a sum of positive squares in 4 ways, for example, as 5359225000000 + 6952018142224 = 2315000^2 + 2636668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311243142223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1740839669 + ... + 1740846740.

It is an arithmetic number, because the mean of its divisors is an integer number (679973355873).

Almost surely, 2^{12311243142224} is an apocalyptic number.

It is an amenable number.

12311243142224 is an abundant number, since it is smaller than the sum of its proper divisors (14887691092696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311243142224 is a wasteful number, since it uses less digits than its factorization.

12311243142224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481686447 (or 3481686441 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

Adding to 12311243142224 its reverse (42224134211321), we get a palindrome (54535377353545).

The spelling of 12311243142224 in words is "twelve trillion, three hundred eleven billion, two hundred forty-three million, one hundred forty-two thousand, two hundred twenty-four".