2021432339 has 2 divisors, whose sum is σ = 2021432340. Its totient is φ = 2021432338.

The previous prime is 2021432299. The next prime is 2021432377. The reversal of 2021432339 is 9332341202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021432339 - 2¹⁶ = 2021366803 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021432239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010716169 + 1010716170.

It is an arithmetic number, because the mean of its divisors is an integer number (1010716170).

Almost surely, 2^2021432339 is an apocalyptic number.

2021432339 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021432339 is an equidigital number, since it uses as much as digits as its factorization.

2021432339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 2021432339 is about 44960.3418470100. The cubic root of 2021432339 is about 1264.4055780269.

The spelling of 2021432339 in words is "two billion, twenty-one million, four hundred thirty-two thousand, three hundred thirty-nine".