2106328243 has 2 divisors, whose sum is σ = 2106328244. Its totient is φ = 2106328242.

The previous prime is 2106328223. The next prime is 2106328303. The reversal of 2106328243 is 3428236012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2106328243 - 2⁹ = 2106327731 is a prime.

It is not a weakly prime, because it can be changed into another prime (2106328223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053164121 + 1053164122.

It is an arithmetic number, because the mean of its divisors is an integer number (1053164122).

Almost surely, 2^2106328243 is an apocalyptic number.

2106328243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106328243 is an equidigital number, since it uses as much as digits as its factorization.

2106328243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2106328243 is about 45894.7518023575. The cubic root of 2106328243 is about 1281.8641950814.

The spelling of 2106328243 in words is "two billion, one hundred six million, three hundred twenty-eight thousand, two hundred forty-three".