210202123133 has 2 divisors, whose sum is σ = 210202123134. Its totient is φ = 210202123132.

The previous prime is 210202123127. The next prime is 210202123169. The reversal of 210202123133 is 331321202012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183023962969 + 27178160164 = 427813^2 + 164858^2 .

It is a cyclic number.

It is not a de Polignac number, because 210202123133 - 2⁶ = 210202123069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210202123333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105101061566 + 105101061567.

It is an arithmetic number, because the mean of its divisors is an integer number (105101061567).

Almost surely, 2^210202123133 is an apocalyptic number.

It is an amenable number.

210202123133 is a deficient number, since it is larger than the sum of its proper divisors (1).

210202123133 is an equidigital number, since it uses as much as digits as its factorization.

210202123133 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 20.

Adding to 210202123133 its reverse (331321202012), we get a palindrome (541523325145).

The spelling of 210202123133 in words is "two hundred ten billion, two hundred two million, one hundred twenty-three thousand, one hundred thirty-three".