1311423361616 has 40 divisors (see below), whose sum is σ = 2604358310400. Its totient is φ = 639382334976.

The previous prime is 1311423361561. The next prime is 1311423361681. The reversal of 1311423361616 is 6161633241131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311423361616.

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, 1199216 + ... + 2015183.

It is an arithmetic number, because the mean of its divisors is an integer number (65108957760).

Almost surely, 2^{1311423361616} is an apocalyptic number.

1311423361616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1311423361616 is a deficient number, since it is larger than the sum of its proper divisors (1292934948784).

1311423361616 is a wasteful number, since it uses less digits than its factorization.

1311423361616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215043 (or 3215037 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The spelling of 1311423361616 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred sixty-one thousand, six hundred sixteen".