1243434241 has 12 divisors (see below), whose sum is σ = 1447029360. Its totient is φ = 1065369480.

The previous prime is 1243434239. The next prime is 1243434251. The reversal of 1243434241 is 1424343421.

It is not a de Polignac number, because 1243434241 - 2¹ = 1243434239 is a prime.

It is a super-3 number, since 3×1243434241³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1243434251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199746 + ... + 205876.

It is an arithmetic number, because the mean of its divisors is an integer number (120585780).

Almost surely, 2^1243434241 is an apocalyptic number.

It is an amenable number.

1243434241 is a deficient number, since it is larger than the sum of its proper divisors (203595119).

1243434241 is an equidigital number, since it uses as much as digits as its factorization.

1243434241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284 (or 10277 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 1243434241 is about 35262.3629525873. The cubic root of 1243434241 is about 1075.3279665627.

Adding to 1243434241 its reverse (1424343421), we get a palindrome (2667777662).

The spelling of 1243434241 in words is "one billion, two hundred forty-three million, four hundred thirty-four thousand, two hundred forty-one".