1211341013144 has 8 divisors (see below), whose sum is σ = 2271264399660. Its totient is φ = 605670506568.

The previous prime is 1211341013111. The next prime is 1211341013147. The reversal of 1211341013144 is 4413101431121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211341013147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75708813314 + ... + 75708813329.

Almost surely, 2^{1211341013144} is an apocalyptic number.

It is an amenable number.

1211341013144 is a deficient number, since it is larger than the sum of its proper divisors (1059923386516).

1211341013144 is a wasteful number, since it uses less digits than its factorization.

1211341013144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151417626649 (or 151417626645 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 1211341013144 its reverse (4413101431121), we get a palindrome (5624442444265).

The spelling of 1211341013144 in words is "one trillion, two hundred eleven billion, three hundred forty-one million, thirteen thousand, one hundred forty-four".