1201304019 has 4 divisors (see below), whose sum is σ = 1601738696. Its totient is φ = 800869344.

The previous prime is 1201304011. The next prime is 1201304023. The reversal of 1201304019 is 9104031021.

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

It is not a de Polignac number, because 1201304019 - 2³ = 1201304011 is a prime.

It is a super-2 number, since 2×1201304019² = 2886262692131104722, 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 = 1201303986 and 1201304004.

It is not an unprimeable number, because it can be changed into a prime (1201304011) 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, 200217334 + ... + 200217339.

It is an arithmetic number, because the mean of its divisors is an integer number (400434674).

Almost surely, 2^1201304019 is an apocalyptic number.

1201304019 is a deficient number, since it is larger than the sum of its proper divisors (400434677).

1201304019 is an equidigital number, since it uses as much as digits as its factorization.

1201304019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400434676.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1201304019 is about 34659.8329338155. The cubic root of 1201304019 is about 1063.0433539935.

The spelling of 1201304019 in words is "one billion, two hundred one million, three hundred four thousand, nineteen".