1311446355645 has 16 divisors (see below), whose sum is σ = 2099932021440. Its totient is φ = 698898772224.

The previous prime is 1311446355617. The next prime is 1311446355671. The reversal of 1311446355645 is 5465536441131.

It is not a de Polignac number, because 1311446355645 - 2⁷ = 1311446355517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311446355594 and 1311446355603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33685155 + ... + 33724064.

It is an arithmetic number, because the mean of its divisors is an integer number (131245751340).

Almost surely, 2^{1311446355645} is an apocalyptic number.

1311446355645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311446355645 is a deficient number, since it is larger than the sum of its proper divisors (788485665795).

1311446355645 is a wasteful number, since it uses less digits than its factorization.

1311446355645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67410524.

The product of its digits is 2592000, while the sum is 48.

The spelling of 1311446355645 in words is "one trillion, three hundred eleven billion, four hundred forty-six million, three hundred fifty-five thousand, six hundred forty-five".