1102111019 has 4 divisors (see below), whose sum is σ = 1102975344. Its totient is φ = 1101246696.

The previous prime is 1102111007. The next prime is 1102111069. The reversal of 1102111019 is 9101112011.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102111019 is a prime.

It is a super-2 number, since 2×1102111019² = 2429297396402436722, 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 = 1102110988 and 1102111006.

It is not an unprimeable number, because it can be changed into a prime (1102111069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430247 + ... + 432800.

It is an arithmetic number, because the mean of its divisors is an integer number (275743836).

Almost surely, 2^1102111019 is an apocalyptic number.

1102111019 is a deficient number, since it is larger than the sum of its proper divisors (864325).

1102111019 is an equidigital number, since it uses as much as digits as its factorization.

1102111019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864324.

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

The square root of 1102111019 is about 33198.0574582309. The cubic root of 1102111019 is about 1032.9400458821.

The spelling of 1102111019 in words is "one billion, one hundred two million, one hundred eleven thousand, nineteen".