11221323113 has 32 divisors (see below), whose sum is σ = 15078201600. Its totient is φ = 8064956160.

The previous prime is 11221323101. The next prime is 11221323131. The reversal of 11221323113 is 31132312211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11221323113 - 2⁶ = 11221323049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11221323143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1546931 + ... + 1554167.

It is an arithmetic number, because the mean of its divisors is an integer number (471193800).

Almost surely, 2^11221323113 is an apocalyptic number.

11221323113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11221323113 is a deficient number, since it is larger than the sum of its proper divisors (3856878487).

11221323113 is a wasteful number, since it uses less digits than its factorization.

11221323113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817.

The product of its digits is 216, while the sum is 20.

Adding to 11221323113 its reverse (31132312211), we get a palindrome (42353635324).

The spelling of 11221323113 in words is "eleven billion, two hundred twenty-one million, three hundred twenty-three thousand, one hundred thirteen".