1311185662073 has 8 divisors (see below), whose sum is σ = 1499582992320. Its totient is φ = 1123059605040.

The previous prime is 1311185662067. The next prime is 1311185662079. The reversal of 1311185662073 is 3702665811131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1311185662067) and next prime (1311185662079).

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

It is a cyclic number.

It is not a de Polignac number, because 1311185662073 - 2²⁸ = 1310917226617 is a prime.

It is a super-2 number, since 2×1311185662073² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311185662079) 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 7 ways as a sum of consecutive naturals, for example, 67807943 + ... + 67827276.

It is an arithmetic number, because the mean of its divisors is an integer number (187447874040).

Almost surely, 2^{1311185662073} is an apocalyptic number.

It is an amenable number.

1311185662073 is a deficient number, since it is larger than the sum of its proper divisors (188397330247).

1311185662073 is a wasteful number, since it uses less digits than its factorization.

1311185662073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135636607.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 1311185662073 in words is "one trillion, three hundred eleven billion, one hundred eighty-five million, six hundred sixty-two thousand, seventy-three".