1200010002073 has 2 divisors, whose sum is σ = 1200010002074. Its totient is φ = 1200010002072.

The previous prime is 1200010002071. The next prime is 1200010002187. The reversal of 1200010002073 is 3702000100021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 718607157849 + 481402844224 = 847707^2 + 693832^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200010002073 - 2¹ = 1200010002071 is a prime.

Together with 1200010002071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1200010002071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600005001036 + 600005001037.

It is an arithmetic number, because the mean of its divisors is an integer number (600005001037).

Almost surely, 2^{1200010002073} is an apocalyptic number.

It is an amenable number.

1200010002073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200010002073 is an equidigital number, since it uses as much as digits as its factorization.

1200010002073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

Adding to 1200010002073 its reverse (3702000100021), we get a palindrome (4902010102094).

The spelling of 1200010002073 in words is "one trillion, two hundred billion, ten million, two thousand, seventy-three".