1111200001019 has 4 divisors (see below), whose sum is σ = 1113579444744. Its totient is φ = 1108820557296.

The previous prime is 1111200000991. The next prime is 1111200001049. The reversal of 1111200001019 is 9101000021111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111200001019 - 2¹² = 1111199996923 is a prime.

It is a super-2 number, since 2×1111200001019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111200000988 and 1111200001006.

It is not an unprimeable number, because it can be changed into a prime (1111200001049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189721162 + ... + 1189722095.

It is an arithmetic number, because the mean of its divisors is an integer number (278394861186).

Almost surely, 2^{1111200001019} is an apocalyptic number.

1111200001019 is a deficient number, since it is larger than the sum of its proper divisors (2379443725).

1111200001019 is an equidigital number, since it uses as much as digits as its factorization.

1111200001019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379443724.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 1111200001019 in words is "one trillion, one hundred eleven billion, two hundred million, one thousand, nineteen".