1121303947 has 2 divisors, whose sum is σ = 1121303948. Its totient is φ = 1121303946.

The previous prime is 1121303927. The next prime is 1121303971. The reversal of 1121303947 is 7493031211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121303947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121303927) 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, 560651973 + 560651974.

It is an arithmetic number, because the mean of its divisors is an integer number (560651974).

Almost surely, 2^1121303947 is an apocalyptic number.

1121303947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121303947 is an equidigital number, since it uses as much as digits as its factorization.

1121303947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1121303947 is about 33485.8768288961. The cubic root of 1121303947 is about 1038.9016841334.

The spelling of 1121303947 in words is "one billion, one hundred twenty-one million, three hundred three thousand, nine hundred forty-seven".