1171220503844 has 48 divisors (see below), whose sum is σ = 2108646844416. Its totient is φ = 568805328000.

The previous prime is 1171220503841. The next prime is 1171220503907. The reversal of 1171220503844 is 4483050221711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1171220503798 and 1171220503807.

It is not an unprimeable number, because it can be changed into a prime (1171220503841) 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 15 ways as a sum of consecutive naturals, for example, 306359717 + ... + 306363539.

It is an arithmetic number, because the mean of its divisors is an integer number (43930142592).

Almost surely, 2^{1171220503844} is an apocalyptic number.

It is an amenable number.

1171220503844 is a deficient number, since it is larger than the sum of its proper divisors (937426340572).

1171220503844 is a wasteful number, since it uses less digits than its factorization.

1171220503844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876 (or 6874 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 1171220503844 in words is "one trillion, one hundred seventy-one billion, two hundred twenty million, five hundred three thousand, eight hundred forty-four".