1200443241 has 4 divisors (see below), whose sum is σ = 1600590992. Its totient is φ = 800295492.

The previous prime is 1200443239. The next prime is 1200443263. The reversal of 1200443241 is 1423440021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1200443241 - 2¹ = 1200443239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200443291) 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, 200073871 + ... + 200073876.

It is an arithmetic number, because the mean of its divisors is an integer number (400147748).

Almost surely, 2^1200443241 is an apocalyptic number.

It is an amenable number.

1200443241 is a deficient number, since it is larger than the sum of its proper divisors (400147751).

1200443241 is an equidigital number, since it uses as much as digits as its factorization.

1200443241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400147750.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1200443241 is about 34647.4131934839. The cubic root of 1200443241 is about 1062.7893902566.

Adding to 1200443241 its reverse (1423440021), we get a palindrome (2623883262).

The spelling of 1200443241 in words is "one billion, two hundred million, four hundred forty-three thousand, two hundred forty-one".