1112023543 has 2 divisors, whose sum is σ = 1112023544. Its totient is φ = 1112023542.

The previous prime is 1112023541. The next prime is 1112023547. The reversal of 1112023543 is 3453202111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1112023543 - 2¹ = 1112023541 is a prime.

Together with 1112023541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112023541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556011771 + 556011772.

It is an arithmetic number, because the mean of its divisors is an integer number (556011772).

Almost surely, 2^1112023543 is an apocalyptic number.

1112023543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112023543 is an equidigital number, since it uses as much as digits as its factorization.

1112023543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1112023543 is about 33347.0170030244. The cubic root of 1112023543 is about 1036.0276048830.

Adding to 1112023543 its reverse (3453202111), we get a palindrome (4565225654).

The spelling of 1112023543 in words is "one billion, one hundred twelve million, twenty-three thousand, five hundred forty-three".