11131220132 has 24 divisors (see below), whose sum is σ = 19829124000. Its totient is φ = 5465940416.

The previous prime is 11131220057. The next prime is 11131220143. The reversal of 11131220132 is 23102213111.

11131220132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11131220132.

It is an unprimeable number.

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, 225083 + ... + 270045.

It is an arithmetic number, because the mean of its divisors is an integer number (826213500).

Almost surely, 2^11131220132 is an apocalyptic number.

It is an amenable number.

11131220132 is a deficient number, since it is larger than the sum of its proper divisors (8697903868).

11131220132 is a wasteful number, since it uses less digits than its factorization.

11131220132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46075 (or 46073 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11131220132 its reverse (23102213111), we get a palindrome (34233433243).

The spelling of 11131220132 in words is "eleven billion, one hundred thirty-one million, two hundred twenty thousand, one hundred thirty-two".