11471768321 has 8 divisors (see below), whose sum is σ = 12393686760. Its totient is φ = 10555489152.

The previous prime is 11471768257. The next prime is 11471768359. The reversal of 11471768321 is 12386717411.

It can be written as a sum of positive squares in 4 ways, for example, as 287296 + 11471481025 = 536^2 + 107105^2 .

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

It is not a de Polignac number, because 11471768321 - 2⁶ = 11471768257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11471768621) 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, 1405586 + ... + 1413723.

It is an arithmetic number, because the mean of its divisors is an integer number (1549210845).

Almost surely, 2^11471768321 is an apocalyptic number.

It is an amenable number.

11471768321 is a deficient number, since it is larger than the sum of its proper divisors (921918439).

11471768321 is a wasteful number, since it uses less digits than its factorization.

11471768321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819635.

The product of its digits is 56448, while the sum is 41.

The spelling of 11471768321 in words is "eleven billion, four hundred seventy-one million, seven hundred sixty-eight thousand, three hundred twenty-one".