1121450287 has 2 divisors, whose sum is σ = 1121450288. Its totient is φ = 1121450286.

The previous prime is 1121450263. The next prime is 1121450311. The reversal of 1121450287 is 7820541211.

It is a balanced prime because it is at equal distance from previous prime (1121450263) and next prime (1121450311).

It is a cyclic number.

It is not a de Polignac number, because 1121450287 - 2⁷ = 1121450159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121450227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560725143 + 560725144.

It is an arithmetic number, because the mean of its divisors is an integer number (560725144).

Almost surely, 2^1121450287 is an apocalyptic number.

1121450287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121450287 is an equidigital number, since it uses as much as digits as its factorization.

1121450287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1121450287 is about 33488.0618579218. The cubic root of 1121450287 is about 1038.9468774280.

Adding to 1121450287 its reverse (7820541211), we get a palindrome (8941991498).

The spelling of 1121450287 in words is "one billion, one hundred twenty-one million, four hundred fifty thousand, two hundred eighty-seven".