13111222211123 has 8 divisors (see below), whose sum is σ = 13128007628736. Its totient is φ = 13094443549800.

The previous prime is 13111222211071. The next prime is 13111222211167. The reversal of 13111222211123 is 32111222211131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13111222211123 - 2¹⁴ = 13111222194739 is a prime.

It is a super-2 number, since 2×13111222211123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111222211173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200328 + ... + 5573498.

It is an arithmetic number, because the mean of its divisors is an integer number (1641000953592).

Almost surely, 2^{13111222211123} is an apocalyptic number.

13111222211123 is a deficient number, since it is larger than the sum of its proper divisors (16785417613).

13111222211123 is an equidigital number, since it uses as much as digits as its factorization.

13111222211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378145.

The product of its digits is 288, while the sum is 23.

Adding to 13111222211123 its reverse (32111222211131), we get a palindrome (45222444422254).

The spelling of 13111222211123 in words is "thirteen trillion, one hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twenty-three".