1000001120971 has 2 divisors, whose sum is σ = 1000001120972. Its totient is φ = 1000001120970.

The previous prime is 1000001120969. The next prime is 1000001120977. The reversal of 1000001120971 is 1790211000001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000001120971 - 2¹ = 1000001120969 is a prime.

Together with 1000001120969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1000001120977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000560485 + 500000560486.

It is an arithmetic number, because the mean of its divisors is an integer number (500000560486).

Almost surely, 2^{1000001120971} is an apocalyptic number.

1000001120971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000001120971 is an equidigital number, since it uses as much as digits as its factorization.

1000001120971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 22.

Adding to 1000001120971 its reverse (1790211000001), we get a palindrome (2790212120972).

The spelling of 1000001120971 in words is "one trillion, one million, one hundred twenty thousand, nine hundred seventy-one".