11131203044 has 24 divisors (see below), whose sum is σ = 20981110080. Its totient is φ = 5136725664.

The previous prime is 11131202993. The next prime is 11131203049. The reversal of 11131203044 is 44030213111.

It is not an unprimeable number, because it can be changed into a prime (11131203049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 511367 + ... + 532689.

It is an arithmetic number, because the mean of its divisors is an integer number (874212920).

Almost surely, 2^11131203044 is an apocalyptic number.

It is an amenable number.

11131203044 is a deficient number, since it is larger than the sum of its proper divisors (9849907036).

11131203044 is a wasteful number, since it uses less digits than its factorization.

11131203044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31379 (or 31377 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11131203044 its reverse (44030213111), we get a palindrome (55161416155).

The spelling of 11131203044 in words is "eleven billion, one hundred thirty-one million, two hundred three thousand, forty-four".