210113201209 has 2 divisors, whose sum is σ = 210113201210. Its totient is φ = 210113201208.

The previous prime is 210113201191. The next prime is 210113201227. The reversal of 210113201209 is 902102311012.

It is a balanced prime because it is at equal distance from previous prime (210113201191) and next prime (210113201227).

It can be written as a sum of positive squares in only one way, i.e., 175181591209 + 34931610000 = 418547^2 + 186900^2 .

It is a cyclic number.

It is not a de Polignac number, because 210113201209 - 2²⁷ = 209978983481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210113201209.

It is not a weakly prime, because it can be changed into another prime (210113201239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105056600604 + 105056600605.

It is an arithmetic number, because the mean of its divisors is an integer number (105056600605).

Almost surely, 2^210113201209 is an apocalyptic number.

It is an amenable number.

210113201209 is a deficient number, since it is larger than the sum of its proper divisors (1).

210113201209 is an equidigital number, since it uses as much as digits as its factorization.

210113201209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 210113201209 in words is "two hundred ten billion, one hundred thirteen million, two hundred one thousand, two hundred nine".