1311550543244 has 12 divisors (see below), whose sum is σ = 2295240365544. Its totient is φ = 655767581664.

The previous prime is 1311550543169. The next prime is 1311550543283. The reversal of 1311550543244 is 4423450551131.

It is a junction number, because it is equal to n+sod(n) for n = 1311550543198 and 1311550543207.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1529834 + ... + 2227889.

It is an arithmetic number, because the mean of its divisors is an integer number (191270030462).

Almost surely, 2^{1311550543244} is an apocalyptic number.

It is an amenable number.

1311550543244 is a deficient number, since it is larger than the sum of its proper divisors (983689822300).

1311550543244 is a wasteful number, since it uses less digits than its factorization.

1311550543244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844984 (or 3844982 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 1311550543244 in words is "one trillion, three hundred eleven billion, five hundred fifty million, five hundred forty-three thousand, two hundred forty-four".