1311411616052 has 24 divisors (see below), whose sum is σ = 2352198267720. Its totient is φ = 639372016640.

The previous prime is 1311411616033. The next prime is 1311411616069. The reversal of 1311411616052 is 2506161141131.

It can be written as a sum of positive squares in 4 ways, for example, as 79120688656 + 1232290927396 = 281284^2 + 1110086^2 .

It is a super-2 number, since 2×1311411616052² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1822277 + ... + 2437932.

It is an arithmetic number, because the mean of its divisors is an integer number (98008261155).

Almost surely, 2^{1311411616052} is an apocalyptic number.

It is an amenable number.

1311411616052 is a deficient number, since it is larger than the sum of its proper divisors (1040786651668).

1311411616052 is a wasteful number, since it uses less digits than its factorization.

1311411616052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262131 (or 4262129 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

Adding to 1311411616052 its reverse (2506161141131), we get a palindrome (3817572757183).

The spelling of 1311411616052 in words is "one trillion, three hundred eleven billion, four hundred eleven million, six hundred sixteen thousand, fifty-two".