11100019 has 6 divisors (see below), whose sum is σ = 12912324. Its totient is φ = 9514260.

The previous prime is 11100017. The next prime is 11100029. The reversal of 11100019 is 91000111.

It is not a de Polignac number, because 11100019 - 2¹ = 11100017 is a prime.

It is a super-2 number, since 2×11100019² = 246420843600722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11099981 and 11100008.

It is not an unprimeable number, because it can be changed into a prime (11100013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113217 + ... + 113314.

It is an arithmetic number, because the mean of its divisors is an integer number (2152054).

Almost surely, 2^11100019 is an apocalyptic number.

11100019 is a deficient number, since it is larger than the sum of its proper divisors (1812305).

11100019 is an equidigital number, since it uses as much as digits as its factorization.

11100019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226545 (or 226538 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 11100019 is about 3331.6691012164. The cubic root of 11100019 is about 223.0700377246.

The spelling of 11100019 in words is "eleven million, one hundred thousand, nineteen".