1001207971 has 2 divisors, whose sum is σ = 1001207972. Its totient is φ = 1001207970.

The previous prime is 1001207957. The next prime is 1001207989. The reversal of 1001207971 is 1797021001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001207971 - 2¹¹ = 1001205923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001207941) 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, 500603985 + 500603986.

It is an arithmetic number, because the mean of its divisors is an integer number (500603986).

Almost surely, 2^1001207971 is an apocalyptic number.

1001207971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001207971 is an equidigital number, since it uses as much as digits as its factorization.

1001207971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 1001207971 is about 31641.8705357316. The cubic root of 1001207971 is about 1000.4024949761.

Adding to 1001207971 its reverse (1797021001), we get a palindrome (2798228972).

The spelling of 1001207971 in words is "one billion, one million, two hundred seven thousand, nine hundred seventy-one".