120100019 has 18 divisors (see below), whose sum is σ = 138205260. Its totient is φ = 104297856.

The previous prime is 120100003. The next prime is 120100027. The reversal of 120100019 is 910001021.

It is not a de Polignac number, because 120100019 - 2⁴ = 120100003 is a prime.

It is a super-2 number, since 2×120100019² = 28848029127600722, 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 = 120099976 and 120100012.

It is not an unprimeable number, because it can be changed into a prime (120100069) 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 17 ways as a sum of consecutive naturals, for example, 47612 + ... + 50070.

It is an arithmetic number, because the mean of its divisors is an integer number (7678070).

Almost surely, 2^120100019 is an apocalyptic number.

120100019 is a deficient number, since it is larger than the sum of its proper divisors (18105241).

120100019 is a wasteful number, since it uses less digits than its factorization.

120100019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519 (or 2489 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 120100019 is about 10959.0154211042. The cubic root of 120100019 is about 493.3794146246.

The spelling of 120100019 in words is "one hundred twenty million, one hundred thousand, nineteen".