13111144061 has 16 divisors (see below), whose sum is σ = 13859704320. Its totient is φ = 12383400960.

The previous prime is 13111144027. The next prime is 13111144087. The reversal of 13111144061 is 16044111131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111144061 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 (13111144021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2141741 + ... + 2147853.

It is an arithmetic number, because the mean of its divisors is an integer number (866231520).

Almost surely, 2^13111144061 is an apocalyptic number.

It is an amenable number.

13111144061 is a deficient number, since it is larger than the sum of its proper divisors (748560259).

13111144061 is a wasteful number, since it uses less digits than its factorization.

13111144061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7796.

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

Adding to 13111144061 its reverse (16044111131), we get a palindrome (29155255192).

The spelling of 13111144061 in words is "thirteen billion, one hundred eleven million, one hundred forty-four thousand, sixty-one".