201213433 has 2 divisors, whose sum is σ = 201213434. Its totient is φ = 201213432.

The previous prime is 201213427. The next prime is 201213443. The reversal of 201213433 is 334312102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154057744 + 47155689 = 12412^2 + 6867^2 .

It is a cyclic number.

It is not a de Polignac number, because 201213433 - 2¹⁷ = 201082361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201213433.

It is not a weakly prime, because it can be changed into another prime (201213443) 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, 100606716 + 100606717.

It is an arithmetic number, because the mean of its divisors is an integer number (100606717).

Almost surely, 2^201213433 is an apocalyptic number.

It is an amenable number.

201213433 is a deficient number, since it is larger than the sum of its proper divisors (1).

201213433 is an equidigital number, since it uses as much as digits as its factorization.

201213433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 201213433 is about 14184.9720831590. The cubic root of 201213433 is about 585.9838636659.

Adding to 201213433 its reverse (334312102), we get a palindrome (535525535).

The spelling of 201213433 in words is "two hundred one million, two hundred thirteen thousand, four hundred thirty-three".