11321656 has 8 divisors (see below), whose sum is σ = 21228120. Its totient is φ = 5660824.

The previous prime is 11321591. The next prime is 11321659. The reversal of 11321656 is 65612311.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11321656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707596 + ... + 707611.

It is an arithmetic number, because the mean of its divisors is an integer number (2653515).

Almost surely, 2^11321656 is an apocalyptic number.

It is an amenable number.

11321656 is a deficient number, since it is larger than the sum of its proper divisors (9906464).

11321656 is a wasteful number, since it uses less digits than its factorization.

11321656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415213 (or 1415209 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 11321656 is about 3364.7668567079. The cubic root of 11321656 is about 224.5449634892.

Adding to 11321656 its reverse (65612311), we get a palindrome (76933967).

The spelling of 11321656 in words is "eleven million, three hundred twenty-one thousand, six hundred fifty-six".