1311241103012 has 12 divisors (see below), whose sum is σ = 2295201052620. Its totient is φ = 655469373696.

The previous prime is 1311241103009. The next prime is 1311241103017. The reversal of 1311241103012 is 2103011421131.

It can be written as a sum of positive squares in 2 ways, for example, as 22866278656 + 1288374824356 = 151216^2 + 1135066^2 .

It is not an unprimeable number, because it can be changed into a prime (1311241103017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37774937 + ... + 37809632.

It is an arithmetic number, because the mean of its divisors is an integer number (191266754385).

Almost surely, 2^{1311241103012} is an apocalyptic number.

It is an amenable number.

1311241103012 is a deficient number, since it is larger than the sum of its proper divisors (983959949608).

1311241103012 is a wasteful number, since it uses less digits than its factorization.

1311241103012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75588910 (or 75588908 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1311241103012 its reverse (2103011421131), we get a palindrome (3414252524143).

The spelling of 1311241103012 in words is "one trillion, three hundred eleven billion, two hundred forty-one million, one hundred three thousand, twelve".