1101005947 has 2 divisors, whose sum is σ = 1101005948. Its totient is φ = 1101005946.

The previous prime is 1101005933. The next prime is 1101005953. The reversal of 1101005947 is 7495001011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101005947 - 2⁷ = 1101005819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101006947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550502973 + 550502974.

It is an arithmetic number, because the mean of its divisors is an integer number (550502974).

Almost surely, 2^1101005947 is an apocalyptic number.

1101005947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101005947 is an equidigital number, since it uses as much as digits as its factorization.

1101005947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 1101005947 is about 33181.4096596272. The cubic root of 1101005947 is about 1032.5946920328.

Adding to 1101005947 its reverse (7495001011), we get a palindrome (8596006958).

The spelling of 1101005947 in words is "one billion, one hundred one million, five thousand, nine hundred forty-seven".