1241211443 has 4 divisors (see below), whose sum is σ = 1241401008. Its totient is φ = 1241021880.

The previous prime is 1241211403. The next prime is 1241211451. The reversal of 1241211443 is 3441121421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3441121421 = 79 ⋅43558499.

It is a cyclic number.

It is not a de Polignac number, because 1241211443 - 2²⁰ = 1240162867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241211403) 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, 84596 + ... + 98177.

It is an arithmetic number, because the mean of its divisors is an integer number (310350252).

Almost surely, 2^1241211443 is an apocalyptic number.

1241211443 is a deficient number, since it is larger than the sum of its proper divisors (189565).

1241211443 is an equidigital number, since it uses as much as digits as its factorization.

1241211443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189564.

The product of its digits is 768, while the sum is 23.

The square root of 1241211443 is about 35230.8308587805. The cubic root of 1241211443 is about 1074.6868222020.

Adding to 1241211443 its reverse (3441121421), we get a palindrome (4682332864).

The spelling of 1241211443 in words is "one billion, two hundred forty-one million, two hundred eleven thousand, four hundred forty-three".