11321127656 has 16 divisors (see below), whose sum is σ = 22344331200. Its totient is φ = 5362639344.

The previous prime is 11321127647. The next prime is 11321127661. The reversal of 11321127656 is 65672112311.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37240400 + ... + 37240703.

It is an arithmetic number, because the mean of its divisors is an integer number (1396520700).

Almost surely, 2^11321127656 is an apocalyptic number.

It is an amenable number.

11321127656 is a deficient number, since it is larger than the sum of its proper divisors (11023203544).

11321127656 is a wasteful number, since it uses less digits than its factorization.

11321127656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74481128 (or 74481124 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

Adding to 11321127656 its reverse (65672112311), we get a palindrome (76993239967).

The spelling of 11321127656 in words is "eleven billion, three hundred twenty-one million, one hundred twenty-seven thousand, six hundred fifty-six".