1205050213 has 2 divisors, whose sum is σ = 1205050214. Its totient is φ = 1205050212.

The previous prime is 1205050211. The next prime is 1205050237. The reversal of 1205050213 is 3120505021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 905829409 + 299220804 = 30097^2 + 17298^2 .

It is a cyclic number.

It is not a de Polignac number, because 1205050213 - 2¹ = 1205050211 is a prime.

Together with 1205050211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205050211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602525106 + 602525107.

It is an arithmetic number, because the mean of its divisors is an integer number (602525107).

Almost surely, 2^1205050213 is an apocalyptic number.

It is an amenable number.

1205050213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205050213 is an equidigital number, since it uses as much as digits as its factorization.

1205050213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1205050213 is about 34713.8331648926. The cubic root of 1205050213 is about 1064.1472194981.

Adding to 1205050213 its reverse (3120505021), we get a palindrome (4325555234).

The spelling of 1205050213 in words is "one billion, two hundred five million, fifty thousand, two hundred thirteen".