12113454543 has 16 divisors (see below), whose sum is σ = 16401012480. Its totient is φ = 7950894336.

The previous prime is 12113454517. The next prime is 12113454547. The reversal of 12113454543 is 34545431121.

It is not a de Polignac number, because 12113454543 - 2¹⁰ = 12113453519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113454547) 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, 390478 + ... + 420356.

It is an arithmetic number, because the mean of its divisors is an integer number (1025063280).

Almost surely, 2^12113454543 is an apocalyptic number.

12113454543 is a deficient number, since it is larger than the sum of its proper divisors (4287557937).

12113454543 is a wasteful number, since it uses less digits than its factorization.

12113454543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31966.

The product of its digits is 28800, while the sum is 33.

Adding to 12113454543 its reverse (34545431121), we get a palindrome (46658885664).

The spelling of 12113454543 in words is "twelve billion, one hundred thirteen million, four hundred fifty-four thousand, five hundred forty-three".