1211343334044 has 24 divisors (see below), whose sum is σ = 2828647050768. Its totient is φ = 403469786880.

The previous prime is 1211343334043. The next prime is 1211343334067. The reversal of 1211343334044 is 4404333431121.

It is a junction number, because it is equal to n+sod(n) for n = 1211343333996 and 1211343334014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211343334043) 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 7 ways as a sum of consecutive naturals, for example, 38899347 + ... + 38930474.

It is an arithmetic number, because the mean of its divisors is an integer number (117860293782).

Almost surely, 2^{1211343334044} is an apocalyptic number.

It is an amenable number.

1211343334044 is an abundant number, since it is smaller than the sum of its proper divisors (1617303716724).

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

1211343334044 is a wasteful number, since it uses less digits than its factorization.

1211343334044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77831125 (or 77831123 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 1211343334044 its reverse (4404333431121), we get a palindrome (5615676765165).

The spelling of 1211343334044 in words is "one trillion, two hundred eleven billion, three hundred forty-three million, three hundred thirty-four thousand, forty-four".