1103020019 has 4 divisors (see below), whose sum is σ = 1111705344. Its totient is φ = 1094334696.

The previous prime is 1103020001. The next prime is 1103020033. The reversal of 1103020019 is 9100203011.

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 1103020019 - 2²⁸ = 834584563 is a prime.

It is a super-2 number, since 2×1103020019² = 2433306324629520722, 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 = 1103019979 and 1103020006.

It is not an unprimeable number, because it can be changed into a prime (1103020069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4342472 + ... + 4342725.

It is an arithmetic number, because the mean of its divisors is an integer number (277926336).

Almost surely, 2^1103020019 is an apocalyptic number.

1103020019 is a deficient number, since it is larger than the sum of its proper divisors (8685325).

1103020019 is an equidigital number, since it uses as much as digits as its factorization.

1103020019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685324.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1103020019 is about 33211.7451965415. The cubic root of 1103020019 is about 1033.2239508799.

The spelling of 1103020019 in words is "one billion, one hundred three million, twenty thousand, nineteen".