2123110019 has 2 divisors, whose sum is σ = 2123110020. Its totient is φ = 2123110018.

The previous prime is 2123110009. The next prime is 2123110043. The reversal of 2123110019 is 9100113212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123110019 - 2⁸ = 2123109763 is a prime.

It is a super-2 number, since 2×2123110019² = 9015192305556360722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2123110009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061555009 + 1061555010.

It is an arithmetic number, because the mean of its divisors is an integer number (1061555010).

Almost surely, 2^2123110019 is an apocalyptic number.

2123110019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123110019 is an equidigital number, since it uses as much as digits as its factorization.

2123110019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 2123110019 is about 46077.2180041287. The cubic root of 2123110019 is about 1285.2595314232.

The spelling of 2123110019 in words is "two billion, one hundred twenty-three million, one hundred ten thousand, nineteen".