213203012369 has 2 divisors, whose sum is σ = 213203012370. Its totient is φ = 213203012368.

The previous prime is 213203012357. The next prime is 213203012417. The reversal of 213203012369 is 963210302312.

213203012369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212439871744 + 763140625 = 460912^2 + 27625^2 .

It is a cyclic number.

It is not a de Polignac number, because 213203012369 - 2²⁴ = 213186235153 is a prime.

It is a super-2 number, since 2×213203012369² (a number of 23 digits) contains 22 as substring.

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 (213203012969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106601506184 + 106601506185.

It is an arithmetic number, because the mean of its divisors is an integer number (106601506185).

Almost surely, 2^213203012369 is an apocalyptic number.

It is an amenable number.

213203012369 is a deficient number, since it is larger than the sum of its proper divisors (1).

213203012369 is an equidigital number, since it uses as much as digits as its factorization.

213203012369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 213203012369 in words is "two hundred thirteen billion, two hundred three million, twelve thousand, three hundred sixty-nine".