1211141443144 has 8 divisors (see below), whose sum is σ = 2270890205910. Its totient is φ = 605570721568.

The previous prime is 1211141443093. The next prime is 1211141443153. The reversal of 1211141443144 is 4413441411121.

It can be written as a sum of positive squares in only one way, i.e., 903948380644 + 307193062500 = 950762^2 + 554250^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75696340189 + ... + 75696340204.

Almost surely, 2^{1211141443144} is an apocalyptic number.

It is an amenable number.

1211141443144 is a deficient number, since it is larger than the sum of its proper divisors (1059748762766).

1211141443144 is a wasteful number, since it uses less digits than its factorization.

1211141443144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151392680399 (or 151392680395 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

Adding to 1211141443144 its reverse (4413441411121), we get a palindrome (5624582854265).

The spelling of 1211141443144 in words is "one trillion, two hundred eleven billion, one hundred forty-one million, four hundred forty-three thousand, one hundred forty-four".