2102040019 has 2 divisors, whose sum is σ = 2102040020. Its totient is φ = 2102040018.

The previous prime is 2102039969. The next prime is 2102040043. The reversal of 2102040019 is 9100402012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102040019 - 2⁹ = 2102039507 is a prime.

It is a super-2 number, since 2×2102040019² = 8837144482955040722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102039978 and 2102040005.

It is not a weakly prime, because it can be changed into another prime (2102043019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051020009 + 1051020010.

It is an arithmetic number, because the mean of its divisors is an integer number (1051020010).

Almost surely, 2^2102040019 is an apocalyptic number.

2102040019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102040019 is an equidigital number, since it uses as much as digits as its factorization.

2102040019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2102040019 is about 45848.0099786239. The cubic root of 2102040019 is about 1280.9936983770.

The spelling of 2102040019 in words is "two billion, one hundred two million, forty thousand, nineteen".