111010101010019 has 2 divisors, whose sum is σ = 111010101010020. Its totient is φ = 111010101010018.

The previous prime is 111010101009991. The next prime is 111010101010223. The reversal of 111010101010019 is 910010101010111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111010101010019 - 2³² = 111005806042723 is a prime.

It is a super-2 number, since 2×111010101010019² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 111010101009979 and 111010101010006.

It is not a weakly prime, because it can be changed into another prime (111010101310019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505050505009 + 55505050505010.

It is an arithmetic number, because the mean of its divisors is an integer number (55505050505010).

Almost surely, 2^{111010101010019} is an apocalyptic number.

111010101010019 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010101010019 is an equidigital number, since it uses as much as digits as its factorization.

111010101010019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 17.

The spelling of 111010101010019 in words is "one hundred eleven trillion, ten billion, one hundred one million, ten thousand, nineteen".