4121310209 has 2 divisors, whose sum is σ = 4121310210. Its totient is φ = 4121310208.

The previous prime is 4121310191. The next prime is 4121310211. The reversal of 4121310209 is 9020131214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3620669584 + 500640625 = 60172^2 + 22375^2 .

It is a cyclic number.

It is not a de Polignac number, because 4121310209 - 2¹² = 4121306113 is a prime.

Together with 4121310211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4121310229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060655104 + 2060655105.

It is an arithmetic number, because the mean of its divisors is an integer number (2060655105).

Almost surely, 2^4121310209 is an apocalyptic number.

It is an amenable number.

4121310209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121310209 is an equidigital number, since it uses as much as digits as its factorization.

4121310209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 4121310209 is about 64197.4314828872. The cubic root of 4121310209 is about 1603.2888352250.

The spelling of 4121310209 in words is "four billion, one hundred twenty-one million, three hundred ten thousand, two hundred nine".