13112012223 has 12 divisors (see below), whose sum is σ = 18941626080. Its totient is φ = 8740394016.

The previous prime is 13112012219. The next prime is 13112012227. The reversal of 13112012223 is 32221021131.

It is an interprime number because it is at equal distance from previous prime (13112012219) and next prime (13112012227).

It is not a de Polignac number, because 13112012223 - 2² = 13112012219 is a prime.

It is a super-2 number, since 2×13112012223² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13112012196 and 13112012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112012227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14515 + ... + 162587.

It is an arithmetic number, because the mean of its divisors is an integer number (1578468840).

Almost surely, 2^13112012223 is an apocalyptic number.

13112012223 is a deficient number, since it is larger than the sum of its proper divisors (5829613857).

13112012223 is a wasteful number, since it uses less digits than its factorization.

13112012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157918 (or 157915 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13112012223 its reverse (32221021131), we get a palindrome (45333033354).

The spelling of 13112012223 in words is "thirteen billion, one hundred twelve million, twelve thousand, two hundred twenty-three".