1241043213 has 4 divisors (see below), whose sum is σ = 1654724288. Its totient is φ = 827362140.

The previous prime is 1241043187. The next prime is 1241043217. The reversal of 1241043213 is 3123401421.

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 1241043213 - 2²¹ = 1238946061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241043213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241043217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206840533 + ... + 206840538.

It is an arithmetic number, because the mean of its divisors is an integer number (413681072).

Almost surely, 2^1241043213 is an apocalyptic number.

It is an amenable number.

1241043213 is a deficient number, since it is larger than the sum of its proper divisors (413681075).

1241043213 is an equidigital number, since it uses as much as digits as its factorization.

1241043213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413681074.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1241043213 is about 35228.4432383834. The cubic root of 1241043213 is about 1074.6382667541.

Adding to 1241043213 its reverse (3123401421), we get a palindrome (4364444634).

The spelling of 1241043213 in words is "one billion, two hundred forty-one million, forty-three thousand, two hundred thirteen".