11320351648 has 24 divisors (see below), whose sum is σ = 22449629412. Its totient is φ = 5618858496.

The previous prime is 11320351631. The next prime is 11320351649. The reversal of 11320351648 is 84615302311.

It can be written as a sum of positive squares in 2 ways, for example, as 10960414864 + 359936784 = 104692^2 + 18972^2 .

It is a super-2 number, since 2×11320351648² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11320351649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286715 + ... + 1295482.

Almost surely, 2^11320351648 is an apocalyptic number.

It is an amenable number.

11320351648 is a deficient number, since it is larger than the sum of its proper divisors (11129277764).

11320351648 is a wasteful number, since it uses less digits than its factorization.

11320351648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582344 (or 2582336 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 11320351648 its reverse (84615302311), we get a palindrome (95935653959).

The spelling of 11320351648 in words is "eleven billion, three hundred twenty million, three hundred fifty-one thousand, six hundred forty-eight".