1210213073 has 2 divisors, whose sum is σ = 1210213074. Its totient is φ = 1210213072.

The previous prime is 1210213063. The next prime is 1210213117. The reversal of 1210213073 is 3703120121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1170118849 + 40094224 = 34207^2 + 6332^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210213073 - 2⁶ = 1210213009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1210213003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605106536 + 605106537.

It is an arithmetic number, because the mean of its divisors is an integer number (605106537).

Almost surely, 2^1210213073 is an apocalyptic number.

It is an amenable number.

1210213073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210213073 is an equidigital number, since it uses as much as digits as its factorization.

1210213073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1210213073 is about 34788.1168360692. The cubic root of 1210213073 is about 1065.6647815984.

Adding to 1210213073 its reverse (3703120121), we get a palindrome (4913333194).

The spelling of 1210213073 in words is "one billion, two hundred ten million, two hundred thirteen thousand, seventy-three".