11131248745 has 4 divisors (see below), whose sum is σ = 13357498500. Its totient is φ = 8904998992.

The previous prime is 11131248691. The next prime is 11131248749. The reversal of 11131248745 is 54784213111.

11131248745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1422496656 + 9708752089 = 37716^2 + 98533^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131248745 - 2⁷ = 11131248617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11131248749) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1113124870 + ... + 1113124879.

It is an arithmetic number, because the mean of its divisors is an integer number (3339374625).

Almost surely, 2^11131248745 is an apocalyptic number.

It is an amenable number.

11131248745 is a deficient number, since it is larger than the sum of its proper divisors (2226249755).

11131248745 is an equidigital number, since it uses as much as digits as its factorization.

11131248745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226249754.

The product of its digits is 26880, while the sum is 37.

The spelling of 11131248745 in words is "eleven billion, one hundred thirty-one million, two hundred forty-eight thousand, seven hundred forty-five".