1113140543 has 4 divisors (see below), whose sum is σ = 1116125208. Its totient is φ = 1110155880.

The previous prime is 1113140537. The next prime is 1113140557. The reversal of 1113140543 is 3450413111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3450413111 = 599 ⋅5760289.

It is a cyclic number.

It is not a de Polignac number, because 1113140543 - 2³⁰ = 39398719 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 (1113140563) 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, 1491773 + ... + 1492518.

It is an arithmetic number, because the mean of its divisors is an integer number (279031302).

Almost surely, 2^1113140543 is an apocalyptic number.

1113140543 is a deficient number, since it is larger than the sum of its proper divisors (2984665).

1113140543 is an equidigital number, since it uses as much as digits as its factorization.

1113140543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984664.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1113140543 is about 33363.7609240925. The cubic root of 1113140543 is about 1036.3743767909.

Adding to 1113140543 its reverse (3450413111), we get a palindrome (4563553654).

The spelling of 1113140543 in words is "one billion, one hundred thirteen million, one hundred forty thousand, five hundred forty-three".