1311013105522 has 16 divisors (see below), whose sum is σ = 1999447836120. Its totient is φ = 644616580608.

The previous prime is 1311013105517. The next prime is 1311013105583. The reversal of 1311013105522 is 2255013101131.

It can be written as a sum of positive squares in 4 ways, for example, as 1155257379241 + 155755726281 = 1074829^2 + 394659^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21491197 + ... + 21552112.

Almost surely, 2^{1311013105522} is an apocalyptic number.

1311013105522 is a deficient number, since it is larger than the sum of its proper divisors (688434730598).

1311013105522 is a wasteful number, since it uses less digits than its factorization.

1311013105522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43043565.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 1311013105522 its reverse (2255013101131), we get a palindrome (3566026206653).

The spelling of 1311013105522 in words is "one trillion, three hundred eleven billion, thirteen million, one hundred five thousand, five hundred twenty-two".