1120203391 has 2 divisors, whose sum is σ = 1120203392. Its totient is φ = 1120203390.

The previous prime is 1120203367. The next prime is 1120203421. The reversal of 1120203391 is 1933020211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1120203391 - 2⁷ = 1120203263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120203341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560101695 + 560101696.

It is an arithmetic number, because the mean of its divisors is an integer number (560101696).

Almost surely, 2^1120203391 is an apocalyptic number.

1120203391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120203391 is an equidigital number, since it uses as much as digits as its factorization.

1120203391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1120203391 is about 33469.4396576937. The cubic root of 1120203391 is about 1038.5616800515.

The spelling of 1120203391 in words is "one billion, one hundred twenty million, two hundred three thousand, three hundred ninety-one".