11144747317 has 16 divisors (see below), whose sum is σ = 12262440960. Its totient is φ = 10044626800.

The previous prime is 11144747291. The next prime is 11144747321. The reversal of 11144747317 is 71374744111.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11144747317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11144747317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144747347) 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, 1811148 + ... + 1817290.

It is an arithmetic number, because the mean of its divisors is an integer number (766402560).

Almost surely, 2^11144747317 is an apocalyptic number.

It is an amenable number.

11144747317 is a deficient number, since it is larger than the sum of its proper divisors (1117693643).

11144747317 is a wasteful number, since it uses less digits than its factorization.

11144747317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544.

The product of its digits is 65856, while the sum is 40.

The spelling of 11144747317 in words is "eleven billion, one hundred forty-four million, seven hundred forty-seven thousand, three hundred seventeen".