11131240241 has 12 divisors (see below), whose sum is σ = 12767131776. Its totient is φ = 9679336920.

The previous prime is 11131240213. The next prime is 11131240243. The reversal of 11131240241 is 14204213111.

It is a de Polignac number, because none of the positive numbers 2^k-11131240241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131240243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1997081 + ... + 2002646.

It is an arithmetic number, because the mean of its divisors is an integer number (1063927648).

Almost surely, 2^11131240241 is an apocalyptic number.

11131240241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11131240241 is a deficient number, since it is larger than the sum of its proper divisors (1635891535).

11131240241 is a wasteful number, since it uses less digits than its factorization.

11131240241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999772 (or 3999761 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11131240241 its reverse (14204213111), we get a palindrome (25335453352).

The spelling of 11131240241 in words is "eleven billion, one hundred thirty-one million, two hundred forty thousand, two hundred forty-one".