10101010020019 has 2 divisors, whose sum is σ = 10101010020020. Its totient is φ = 10101010020018.

The previous prime is 10101010020011. The next prime is 10101010020047. The reversal of 10101010020019 is 91002001010101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10101010020019 - 2³ = 10101010020011 is a prime.

It is a super-2 number, since 2×10101010020019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10101010019984 and 10101010020011.

It is not a weakly prime, because it can be changed into another prime (10101010020011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050505010009 + 5050505010010.

It is an arithmetic number, because the mean of its divisors is an integer number (5050505010010).

Almost surely, 2^{10101010020019} is an apocalyptic number.

10101010020019 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101010020019 is an equidigital number, since it uses as much as digits as its factorization.

10101010020019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 10101010020019 in words is "ten trillion, one hundred one billion, ten million, twenty thousand, nineteen".