1113255543 has 8 divisors (see below), whose sum is σ = 1562464000. Its totient is φ = 703108728.

The previous prime is 1113255541. The next prime is 1113255569. The reversal of 1113255543 is 3455523111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1113255543 - 2¹ = 1113255541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113255543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113255541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9765343 + ... + 9765456.

It is an arithmetic number, because the mean of its divisors is an integer number (195308000).

Almost surely, 2^1113255543 is an apocalyptic number.

1113255543 is a deficient number, since it is larger than the sum of its proper divisors (449208457).

1113255543 is a wasteful number, since it uses less digits than its factorization.

1113255543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19530821.

The product of its digits is 9000, while the sum is 30.

The square root of 1113255543 is about 33365.4843063906. The cubic root of 1113255543 is about 1036.4100652910.

Adding to 1113255543 its reverse (3455523111), we get a palindrome (4568778654).

The spelling of 1113255543 in words is "one billion, one hundred thirteen million, two hundred fifty-five thousand, five hundred forty-three".