2021319259 has 2 divisors, whose sum is σ = 2021319260. Its totient is φ = 2021319258.

The previous prime is 2021319239. The next prime is 2021319263. The reversal of 2021319259 is 9529131202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021319259 - 2¹⁷ = 2021188187 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021319239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010659629 + 1010659630.

It is an arithmetic number, because the mean of its divisors is an integer number (1010659630).

Almost surely, 2^2021319259 is an apocalyptic number.

2021319259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021319259 is an equidigital number, since it uses as much as digits as its factorization.

2021319259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 2021319259 is about 44959.0842767065. The cubic root of 2021319259 is about 1264.3820004138.

The spelling of 2021319259 in words is "two billion, twenty-one million, three hundred nineteen thousand, two hundred fifty-nine".