1200313221144 has 32 divisors (see below), whose sum is σ = 3008959595520. Its totient is φ = 399014201376.

The previous prime is 1200313221091. The next prime is 1200313221167. The reversal of 1200313221144 is 4411223130021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 68128864 + ... + 68146479.

It is an arithmetic number, because the mean of its divisors is an integer number (94029987360).

Almost surely, 2^{1200313221144} is an apocalyptic number.

It is an amenable number.

1200313221144 is an abundant number, since it is smaller than the sum of its proper divisors (1808646374376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200313221144 is a wasteful number, since it uses less digits than its factorization.

1200313221144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136275719 (or 136275715 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1200313221144 its reverse (4411223130021), we get a palindrome (5611536351165).

The spelling of 1200313221144 in words is "one trillion, two hundred billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred forty-four".