10121000947 has 2 divisors, whose sum is σ = 10121000948. Its totient is φ = 10121000946.

The previous prime is 10121000941. The next prime is 10121000971. The reversal of 10121000947 is 74900012101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121000947 is a prime.

It is not a weakly prime, because it can be changed into another prime (10121000941) 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, 5060500473 + 5060500474.

It is an arithmetic number, because the mean of its divisors is an integer number (5060500474).

Almost surely, 2^10121000947 is an apocalyptic number.

10121000947 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121000947 is an equidigital number, since it uses as much as digits as its factorization.

10121000947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 10121000947 in words is "ten billion, one hundred twenty-one million, nine hundred forty-seven", and thus it is an aban number.