13110021001123 has 4 divisors (see below), whose sum is σ = 13116961194120. Its totient is φ = 13103080808128.

The previous prime is 13110021001081. The next prime is 13110021001157. The reversal of 13110021001123 is 32110012001131.

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 13110021001123 - 2¹³ = 13110020992931 is a prime.

It is a super-2 number, since 2×13110021001123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13110021001097 and 13110021001106.

It is not an unprimeable number, because it can be changed into a prime (13110021001183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3470093665 + ... + 3470097442.

It is an arithmetic number, because the mean of its divisors is an integer number (3279240298530).

Almost surely, 2^{13110021001123} is an apocalyptic number.

13110021001123 is a deficient number, since it is larger than the sum of its proper divisors (6940192997).

13110021001123 is an equidigital number, since it uses as much as digits as its factorization.

13110021001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940192996.

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

Adding to 13110021001123 its reverse (32110012001131), we get a palindrome (45220033002254).

The spelling of 13110021001123 in words is "thirteen trillion, one hundred ten billion, twenty-one million, one thousand, one hundred twenty-three".