11240340131 has 16 divisors (see below), whose sum is σ = 12281832960. Its totient is φ = 10251269280.

The previous prime is 11240340121. The next prime is 11240340151. The reversal of 11240340131 is 13104304211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11240340131 is a prime.

It is a super-2 number, since 2×11240340131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11240340121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48701 + ... + 157646.

It is an arithmetic number, because the mean of its divisors is an integer number (767614560).

Almost surely, 2^11240340131 is an apocalyptic number.

11240340131 is a deficient number, since it is larger than the sum of its proper divisors (1041492829).

11240340131 is a wasteful number, since it uses less digits than its factorization.

11240340131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206474.

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

Adding to 11240340131 its reverse (13104304211), we get a palindrome (24344644342).

The spelling of 11240340131 in words is "eleven billion, two hundred forty million, three hundred forty thousand, one hundred thirty-one".