2121242059 has 2 divisors, whose sum is σ = 2121242060. Its totient is φ = 2121242058.

The previous prime is 2121242041. The next prime is 2121242083. The reversal of 2121242059 is 9502421212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121242059 - 2⁵ = 2121242027 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121242029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060621029 + 1060621030.

It is an arithmetic number, because the mean of its divisors is an integer number (1060621030).

Almost surely, 2^2121242059 is an apocalyptic number.

2121242059 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121242059 is an equidigital number, since it uses as much as digits as its factorization.

2121242059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2121242059 is about 46056.9436567387. The cubic root of 2121242059 is about 1284.8824873992.

The spelling of 2121242059 in words is "two billion, one hundred twenty-one million, two hundred forty-two thousand, fifty-nine".