1243411224243 has 4 divisors (see below), whose sum is σ = 1657881632328. Its totient is φ = 828940816160.

The previous prime is 1243411224239. The next prime is 1243411224281. The reversal of 1243411224243 is 3424221143421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1243411224243 - 2² = 1243411224239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1243411224233) 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, 207235204038 + ... + 207235204043.

It is an arithmetic number, because the mean of its divisors is an integer number (414470408082).

Almost surely, 2^{1243411224243} is an apocalyptic number.

1243411224243 is a deficient number, since it is larger than the sum of its proper divisors (414470408085).

1243411224243 is an equidigital number, since it uses as much as digits as its factorization.

1243411224243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414470408084.

The product of its digits is 36864, while the sum is 33.

Adding to 1243411224243 its reverse (3424221143421), we get a palindrome (4667632367664).

The spelling of 1243411224243 in words is "one trillion, two hundred forty-three billion, four hundred eleven million, two hundred twenty-four thousand, two hundred forty-three".