210120133 has 2 divisors, whose sum is σ = 210120134. Its totient is φ = 210120132.

The previous prime is 210120101. The next prime is 210120149. The reversal of 210120133 is 331021012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157803844 + 52316289 = 12562^2 + 7233^2 .

It is a cyclic number.

It is not a de Polignac number, because 210120133 - 2⁵ = 210120101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210120193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060066 + 105060067.

It is an arithmetic number, because the mean of its divisors is an integer number (105060067).

Almost surely, 2^210120133 is an apocalyptic number.

It is an amenable number.

210120133 is a deficient number, since it is larger than the sum of its proper divisors (1).

210120133 is an equidigital number, since it uses as much as digits as its factorization.

210120133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 210120133 is about 14495.5211358543. The cubic root of 210120133 is about 594.5055167139.

Adding to 210120133 its reverse (331021012), we get a palindrome (541141145).

The spelling of 210120133 in words is "two hundred ten million, one hundred twenty thousand, one hundred thirty-three".