1121452603 has 2 divisors, whose sum is σ = 1121452604. Its totient is φ = 1121452602.

The previous prime is 1121452547. The next prime is 1121452663. The reversal of 1121452603 is 3062541211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121452603 - 2⁹ = 1121452091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121452663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560726301 + 560726302.

It is an arithmetic number, because the mean of its divisors is an integer number (560726302).

Almost surely, 2^1121452603 is an apocalyptic number.

1121452603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121452603 is an equidigital number, since it uses as much as digits as its factorization.

1121452603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1121452603 is about 33488.0964373910. The cubic root of 1121452603 is about 1038.9475926327.

Adding to 1121452603 its reverse (3062541211), we get a palindrome (4183993814).

The spelling of 1121452603 in words is "one billion, one hundred twenty-one million, four hundred fifty-two thousand, six hundred three".