2128319339 has 2 divisors, whose sum is σ = 2128319340. Its totient is φ = 2128319338.

The previous prime is 2128319327. The next prime is 2128319407. The reversal of 2128319339 is 9339138212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2128319339 - 2¹² = 2128315243 is a prime.

It is a super-2 number, since 2×2128319339² = 9059486417522793842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2128319296 and 2128319305.

It is not a weakly prime, because it can be changed into another prime (2128310339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064159669 + 1064159670.

It is an arithmetic number, because the mean of its divisors is an integer number (1064159670).

Almost surely, 2^2128319339 is an apocalyptic number.

2128319339 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128319339 is an equidigital number, since it uses as much as digits as its factorization.

2128319339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 41.

The square root of 2128319339 is about 46133.7115242206. The cubic root of 2128319339 is about 1286.3098553394.

The spelling of 2128319339 in words is "two billion, one hundred twenty-eight million, three hundred nineteen thousand, three hundred thirty-nine".