210204030043109 has 2 divisors, whose sum is σ = 210204030043110. Its totient is φ = 210204030043108.

The previous prime is 210204030043099. The next prime is 210204030043169. The reversal of 210204030043109 is 901340030402012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204449332822084 + 5754697221025 = 14298578^2 + 2398895^2 .

It is a cyclic number.

It is not a de Polignac number, because 210204030043109 - 2²⁴ = 210204013265893 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 (210204030043169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105102015021554 + 105102015021555.

It is an arithmetic number, because the mean of its divisors is an integer number (105102015021555).

Almost surely, 2^{210204030043109} is an apocalyptic number.

It is an amenable number.

210204030043109 is a deficient number, since it is larger than the sum of its proper divisors (1).

210204030043109 is an equidigital number, since it uses as much as digits as its factorization.

210204030043109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 210204030043109 in words is "two hundred ten trillion, two hundred four billion, thirty million, forty-three thousand, one hundred nine".