11212040344 has 8 divisors (see below), whose sum is σ = 21022575660. Its totient is φ = 5606020168.

The previous prime is 11212040341. The next prime is 11212040377. The reversal of 11212040344 is 44304021211.

It is a happy number.

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 (11212040341) 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, 700752514 + ... + 700752529.

Almost surely, 2^11212040344 is an apocalyptic number.

It is an amenable number.

11212040344 is a deficient number, since it is larger than the sum of its proper divisors (9810535316).

11212040344 is a wasteful number, since it uses less digits than its factorization.

11212040344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401505049 (or 1401505045 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11212040344 its reverse (44304021211), we get a palindrome (55516061555).

The spelling of 11212040344 in words is "eleven billion, two hundred twelve million, forty thousand, three hundred forty-four".