1002012071 has 2 divisors, whose sum is σ = 1002012072. Its totient is φ = 1002012070.

The previous prime is 1002012017. The next prime is 1002012131. The reversal of 1002012071 is 1702102001.

Together with previous prime (1002012017) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (1702102001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002012071 - 2⁶ = 1002012007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002012971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501006035 + 501006036.

It is an arithmetic number, because the mean of its divisors is an integer number (501006036).

Almost surely, 2^1002012071 is an apocalyptic number.

1002012071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002012071 is an equidigital number, since it uses as much as digits as its factorization.

1002012071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1002012071 is about 31654.5742508093. The cubic root of 1002012071 is about 1000.6702410100.

Adding to 1002012071 its reverse (1702102001), we get a palindrome (2704114072).

The spelling of 1002012071 in words is "one billion, two million, twelve thousand, seventy-one".