20111340244 has 12 divisors (see below), whose sum is σ = 35213913504. Its totient is φ = 10050222104.

The previous prime is 20111340217. The next prime is 20111340317. The reversal of 20111340244 is 44204311102.

It is a happy number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1353694 + ... + 1368469.

It is an arithmetic number, because the mean of its divisors is an integer number (2934492792).

Almost surely, 2^20111340244 is an apocalyptic number.

It is an amenable number.

20111340244 is a deficient number, since it is larger than the sum of its proper divisors (15102573260).

20111340244 is a wasteful number, since it uses less digits than its factorization.

20111340244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724014 (or 2724012 counting only the distinct ones).

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

Adding to 20111340244 its reverse (44204311102), we get a palindrome (64315651346).

The spelling of 20111340244 in words is "twenty billion, one hundred eleven million, three hundred forty thousand, two hundred forty-four".