1311205052415 has 8 divisors (see below), whose sum is σ = 2097928083888. Its totient is φ = 699309361280.

The previous prime is 1311205052369. The next prime is 1311205052449. The reversal of 1311205052415 is 5142505021131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311205052415 - 2¹⁰ = 1311205051391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43706835066 + ... + 43706835095.

It is an arithmetic number, because the mean of its divisors is an integer number (262241010486).

Almost surely, 2^{1311205052415} is an apocalyptic number.

1311205052415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1311205052415 is a deficient number, since it is larger than the sum of its proper divisors (786723031473).

1311205052415 is an equidigital number, since it uses as much as digits as its factorization.

1311205052415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87413670169.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 1311205052415 in words is "one trillion, three hundred eleven billion, two hundred five million, fifty-two thousand, four hundred fifteen".