13111121113123 has 32 divisors (see below), whose sum is σ = 15567087928320. Its totient is φ = 10905488616960.

The previous prime is 13111121113121. The next prime is 13111121113133. The reversal of 13111121113123 is 32131112111131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13111121113123 - 2¹ = 13111121113121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13111121113094 and 13111121113103.

It is not an unprimeable number, because it can be changed into a prime (13111121113121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7232118 + ... + 8861476.

It is an arithmetic number, because the mean of its divisors is an integer number (486471497760).

Almost surely, 2^{13111121113123} is an apocalyptic number.

13111121113123 is a deficient number, since it is larger than the sum of its proper divisors (2455966815197).

13111121113123 is a wasteful number, since it uses less digits than its factorization.

13111121113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630587.

The product of its digits is 108, while the sum is 22.

Adding to 13111121113123 its reverse (32131112111131), we get a palindrome (45242233224254).

The spelling of 13111121113123 in words is "thirteen trillion, one hundred eleven billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred twenty-three".