1243043241 has 8 divisors (see below), whose sum is σ = 1808062944. Its totient is φ = 753359520.

The previous prime is 1243043209. The next prime is 1243043267. The reversal of 1243043241 is 1423403421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1243043241 - 2⁵ = 1243043209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1243043201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18833956 + ... + 18834021.

It is an arithmetic number, because the mean of its divisors is an integer number (226007868).

Almost surely, 2^1243043241 is an apocalyptic number.

1243043241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1243043241 is a deficient number, since it is larger than the sum of its proper divisors (565019703).

1243043241 is a wasteful number, since it uses less digits than its factorization.

1243043241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37667991.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1243043241 is about 35256.8183618431. The cubic root of 1243043241 is about 1075.2152418471.

Adding to 1243043241 its reverse (1423403421), we get a palindrome (2666446662).

The spelling of 1243043241 in words is "one billion, two hundred forty-three million, forty-three thousand, two hundred forty-one".