11320351647 has 8 divisors (see below), whose sum is σ = 16465966080. Its totient is φ = 6860819160.

The previous prime is 11320351631. The next prime is 11320351649. The reversal of 11320351647 is 74615302311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11320351647 - 2⁴ = 11320351631 is a prime.

It is a super-2 number, since 2×11320351647² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 343040959 = 11320351647 / (1 + 1 + 3 + 2 + 0 + 3 + 5 + 1 + 6 + 4 + 7).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 171520447 + ... + 171520512.

It is an arithmetic number, because the mean of its divisors is an integer number (2058245760).

Almost surely, 2^11320351647 is an apocalyptic number.

11320351647 is a deficient number, since it is larger than the sum of its proper divisors (5145614433).

11320351647 is a wasteful number, since it uses less digits than its factorization.

11320351647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343040973.

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 11320351647 its reverse (74615302311), we get a palindrome (85935653958).

The spelling of 11320351647 in words is "eleven billion, three hundred twenty million, three hundred fifty-one thousand, six hundred forty-seven".