1201019947 has 2 divisors, whose sum is σ = 1201019948. Its totient is φ = 1201019946.

The previous prime is 1201019933. The next prime is 1201019951. The reversal of 1201019947 is 7499101021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201019947 - 2¹¹ = 1201017899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201019147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600509973 + 600509974.

It is an arithmetic number, because the mean of its divisors is an integer number (600509974).

Almost surely, 2^1201019947 is an apocalyptic number.

1201019947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201019947 is an equidigital number, since it uses as much as digits as its factorization.

1201019947 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 34.

The square root of 1201019947 is about 34655.7346913898. The cubic root of 1201019947 is about 1062.9595548738.

The spelling of 1201019947 in words is "one billion, two hundred one million, nineteen thousand, nine hundred forty-seven".