12111560023741 has 4 divisors (see below), whose sum is σ = 12114519118972. Its totient is φ = 12108600928512.

The previous prime is 12111560023721. The next prime is 12111560023793. The reversal of 12111560023741 is 14732006511121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8628148391641 + 3483411632100 = 2937371^2 + 1866390^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111560023741 - 2¹⁵ = 12111559990973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111560023697 and 12111560023706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111560023711) 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, 1479541476 + ... + 1479549661.

It is an arithmetic number, because the mean of its divisors is an integer number (3028629779743).

Almost surely, 2^{12111560023741} is an apocalyptic number.

It is an amenable number.

12111560023741 is a deficient number, since it is larger than the sum of its proper divisors (2959095231).

12111560023741 is an equidigital number, since it uses as much as digits as its factorization.

12111560023741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959095230.

The product of its (nonzero) digits is 10080, while the sum is 34.

Adding to 12111560023741 its reverse (14732006511121), we get a palindrome (26843566534862).

The spelling of 12111560023741 in words is "twelve trillion, one hundred eleven billion, five hundred sixty million, twenty-three thousand, seven hundred forty-one".