11121242036 has 12 divisors (see below), whose sum is σ = 20607007428. Its totient is φ = 5233525632.

The previous prime is 11121242009. The next prime is 11121242047. The reversal of 11121242036 is 63024212111.

It can be written as a sum of positive squares in 2 ways, for example, as 9061897636 + 2059344400 = 95194^2 + 45380^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81773771 + ... + 81773906.

It is an arithmetic number, because the mean of its divisors is an integer number (1717250619).

Almost surely, 2^11121242036 is an apocalyptic number.

It is an amenable number.

11121242036 is a deficient number, since it is larger than the sum of its proper divisors (9485765392).

11121242036 is a wasteful number, since it uses less digits than its factorization.

11121242036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163547698 (or 163547696 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 11121242036 its reverse (63024212111), we get a palindrome (74145454147).

The spelling of 11121242036 in words is "eleven billion, one hundred twenty-one million, two hundred forty-two thousand, thirty-six".