13260111543 has 12 divisors (see below), whose sum is σ = 21889708048. Its totient is φ = 7577206560.

The previous prime is 13260111539. The next prime is 13260111587. The reversal of 13260111543 is 34511106231.

It is a happy number.

13260111543 is a `hidden beast` number, since 1 + 3 + 2 + 6 + 0 + 111 + 543 = 666.

It is not a de Polignac number, because 13260111543 - 2² = 13260111539 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 (13260111643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105238918 + ... + 105239043.

Almost surely, 2^13260111543 is an apocalyptic number.

13260111543 is a deficient number, since it is larger than the sum of its proper divisors (8629596505).

13260111543 is a wasteful number, since it uses less digits than its factorization.

13260111543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210477974 (or 210477971 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 13260111543 its reverse (34511106231), we get a palindrome (47771217774).

The spelling of 13260111543 in words is "thirteen billion, two hundred sixty million, one hundred eleven thousand, five hundred forty-three".