1311224123202 has 256 divisors, whose sum is σ = 3311284838400. Its totient is φ = 337704837120.

The previous prime is 1311224123197. The next prime is 1311224123203. The reversal of 1311224123202 is 2023214221131.

It is not an unprimeable number, because it can be changed into a prime (1311224123203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 590374452 + ... + 590376672.

It is an arithmetic number, because the mean of its divisors is an integer number (12934706400).

Almost surely, 2^{1311224123202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311224123202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655642419200).

1311224123202 is an abundant number, since it is smaller than the sum of its proper divisors (2000060715198).

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

1311224123202 is a wasteful number, since it uses less digits than its factorization.

1311224123202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

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

Adding to 1311224123202 its reverse (2023214221131), we get a palindrome (3334438344333).

The spelling of 1311224123202 in words is "one trillion, three hundred eleven billion, two hundred twenty-four million, one hundred twenty-three thousand, two hundred two".