1120203043 has 2 divisors, whose sum is σ = 1120203044. Its totient is φ = 1120203042.

The previous prime is 1120203037. The next prime is 1120203059. The reversal of 1120203043 is 3403020211.

It is a happy number.

It is an a-pointer prime, because the next prime (1120203059) can be obtained adding 1120203043 to its sum of digits (16).

It is a weak prime.

It is an emirp because it is prime and its reverse (3403020211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120203043 - 2¹⁷ = 1120071971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120203143) 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, 560101521 + 560101522.

It is an arithmetic number, because the mean of its divisors is an integer number (560101522).

Almost surely, 2^1120203043 is an apocalyptic number.

1120203043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120203043 is an equidigital number, since it uses as much as digits as its factorization.

1120203043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1120203043 is about 33469.4344589209. The cubic root of 1120203043 is about 1038.5615725057.

Adding to 1120203043 its reverse (3403020211), we get a palindrome (4523223254).

The spelling of 1120203043 in words is "one billion, one hundred twenty million, two hundred three thousand, forty-three".