13110421111 has 4 divisors (see below), whose sum is σ = 13136695000. Its totient is φ = 13084147224.

The previous prime is 13110421091. The next prime is 13110421127. The reversal of 13110421111 is 11112401131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11112401131 = 13 ⋅854800087.

It is a cyclic number.

It is not a de Polignac number, because 13110421111 - 2¹⁹ = 13109896823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13110421151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13136196 + ... + 13137193.

It is an arithmetic number, because the mean of its divisors is an integer number (3284173750).

Almost surely, 2^13110421111 is an apocalyptic number.

13110421111 is a deficient number, since it is larger than the sum of its proper divisors (26273889).

13110421111 is an equidigital number, since it uses as much as digits as its factorization.

13110421111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26273888.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 13110421111 its reverse (11112401131), we get a palindrome (24222822242).

The spelling of 13110421111 in words is "thirteen billion, one hundred ten million, four hundred twenty-one thousand, one hundred eleven".