1011100020019 has 2 divisors, whose sum is σ = 1011100020020. Its totient is φ = 1011100020018.

The previous prime is 1011100019983. The next prime is 1011100020037. The reversal of 1011100020019 is 9100200011101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011100020019 - 2⁹ = 1011100019507 is a prime.

It is a super-2 number, since 2×1011100020019² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011100019984 and 1011100020011.

It is not a weakly prime, because it can be changed into another prime (1011100026019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505550010009 + 505550010010.

It is an arithmetic number, because the mean of its divisors is an integer number (505550010010).

Almost surely, 2^{1011100020019} is an apocalyptic number.

1011100020019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011100020019 is an equidigital number, since it uses as much as digits as its factorization.

1011100020019 is an evil number, because the sum of its binary digits is even.

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

The spelling of 1011100020019 in words is "one trillion, eleven billion, one hundred million, twenty thousand, nineteen".