11242138565 has 16 divisors (see below), whose sum is σ = 15510120192. Its totient is φ = 7662729984.

The previous prime is 11242138553. The next prime is 11242138577. The reversal of 11242138565 is 56583124211.

It is an interprime number because it is at equal distance from previous prime (11242138553) and next prime (11242138577).

It is not a de Polignac number, because 11242138565 - 2⁸ = 11242138309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955844 + ... + 967533.

It is an arithmetic number, because the mean of its divisors is an integer number (969382512).

Almost surely, 2^11242138565 is an apocalyptic number.

It is an amenable number.

11242138565 is a deficient number, since it is larger than the sum of its proper divisors (4267981627).

11242138565 is a wasteful number, since it uses less digits than its factorization.

11242138565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923556.

The product of its digits is 57600, while the sum is 38.

The spelling of 11242138565 in words is "eleven billion, two hundred forty-two million, one hundred thirty-eight thousand, five hundred sixty-five".