2104240213 has 2 divisors, whose sum is σ = 2104240214. Its totient is φ = 2104240212.

The previous prime is 2104240211. The next prime is 2104240223. The reversal of 2104240213 is 3120424012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2093337009 + 10903204 = 45753^2 + 3302^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104240213 - 2¹ = 2104240211 is a prime.

Together with 2104240211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2104240211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052120106 + 1052120107.

It is an arithmetic number, because the mean of its divisors is an integer number (1052120107).

Almost surely, 2^2104240213 is an apocalyptic number.

It is an amenable number.

2104240213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104240213 is an equidigital number, since it uses as much as digits as its factorization.

2104240213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2104240213 is about 45871.9981361179. The cubic root of 2104240213 is about 1281.4404789407.

Adding to 2104240213 its reverse (3120424012), we get a palindrome (5224664225).

The spelling of 2104240213 in words is "two billion, one hundred four million, two hundred forty thousand, two hundred thirteen".