13111101223 has 4 divisors (see below), whose sum is σ = 14303019528. Its totient is φ = 11919182920.

The previous prime is 13111101197. The next prime is 13111101239. The reversal of 13111101223 is 32210111131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13111101223 - 2²¹ = 13109004071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13111101197 and 13111101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111101023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595959136 + ... + 595959157.

It is an arithmetic number, because the mean of its divisors is an integer number (3575754882).

Almost surely, 2^13111101223 is an apocalyptic number.

13111101223 is a deficient number, since it is larger than the sum of its proper divisors (1191918305).

13111101223 is a wasteful number, since it uses less digits than its factorization.

13111101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191918304.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13111101223 its reverse (32210111131), we get a palindrome (45321212354).

The spelling of 13111101223 in words is "thirteen billion, one hundred eleven million, one hundred one thousand, two hundred twenty-three".