13311202021444 has 96 divisors (see below), whose sum is σ = 25157497164800. Its totient is φ = 6142343114880.

The previous prime is 13311202021339. The next prime is 13311202021457. The reversal of 13311202021444 is 44412020211331.

It is a happy 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 31 ways as a sum of consecutive naturals, for example, 2303371747 + ... + 2303377525.

Almost surely, 2^{13311202021444} is an apocalyptic number.

It is an amenable number.

13311202021444 is a deficient number, since it is larger than the sum of its proper divisors (11846295143356).

13311202021444 is a wasteful number, since it uses less digits than its factorization.

13311202021444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593 (or 7591 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 13311202021444 its reverse (44412020211331), we get a palindrome (57723222232775).

The spelling of 13311202021444 in words is "thirteen trillion, three hundred eleven billion, two hundred two million, twenty-one thousand, four hundred forty-four".