1120002019 has 4 divisors (see below), whose sum is σ = 1121451696. Its totient is φ = 1118552344.

The previous prime is 1120002001. The next prime is 1120002071. The reversal of 1120002019 is 9102000211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9102000211 = 127 ⋅71669293.

It is a cyclic number.

It is not a de Polignac number, because 1120002019 - 2⁷ = 1120001891 is a prime.

It is a super-2 number, since 2×1120002019² = 2508809045128152722, 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 = 1120001993 and 1120002011.

It is not an unprimeable number, because it can be changed into a prime (1120002119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723679 + ... + 725224.

It is an arithmetic number, because the mean of its divisors is an integer number (280362924).

Almost surely, 2^1120002019 is an apocalyptic number.

1120002019 is a deficient number, since it is larger than the sum of its proper divisors (1449677).

1120002019 is an equidigital number, since it uses as much as digits as its factorization.

1120002019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449676.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1120002019 is about 33466.4312259315. The cubic root of 1120002019 is about 1038.4994443964.

The spelling of 1120002019 in words is "one billion, one hundred twenty million, two thousand, nineteen".