2123019719 has 2 divisors, whose sum is σ = 2123019720. Its totient is φ = 2123019718.

The previous prime is 2123019713. The next prime is 2123019727. The reversal of 2123019719 is 9179103212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123019719 is a prime.

It is a super-2 number, since 2×2123019719² = 9014425454525677922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123019713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061509859 + 1061509860.

It is an arithmetic number, because the mean of its divisors is an integer number (1061509860).

Almost surely, 2^2123019719 is an apocalyptic number.

2123019719 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123019719 is an equidigital number, since it uses as much as digits as its factorization.

2123019719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 2123019719 is about 46076.2381168428. The cubic root of 2123019719 is about 1285.2413096354.

The spelling of 2123019719 in words is "two billion, one hundred twenty-three million, nineteen thousand, seven hundred nineteen".