11322172563 has 16 divisors (see below), whose sum is σ = 16781915136. Its totient is φ = 6742732320.

The previous prime is 11322172559. The next prime is 11322172643. The reversal of 11322172563 is 36527122311.

It is not a de Polignac number, because 11322172563 - 2² = 11322172559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11322152563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4681245 + ... + 4683662.

It is an arithmetic number, because the mean of its divisors is an integer number (1048869696).

Almost surely, 2^11322172563 is an apocalyptic number.

11322172563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11322172563 is a deficient number, since it is larger than the sum of its proper divisors (5459742573).

11322172563 is a wasteful number, since it uses less digits than its factorization.

11322172563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9364954.

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

Adding to 11322172563 its reverse (36527122311), we get a palindrome (47849294874).

The spelling of 11322172563 in words is "eleven billion, three hundred twenty-two million, one hundred seventy-two thousand, five hundred sixty-three".