1244240304243 has 4 divisors (see below), whose sum is σ = 1658987072328. Its totient is φ = 829493536160.

The previous prime is 1244240304211. The next prime is 1244240304269. The reversal of 1244240304243 is 3424030424421.

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 1244240304243 - 2⁵ = 1244240304211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244240304283) 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, 207373384038 + ... + 207373384043.

It is an arithmetic number, because the mean of its divisors is an integer number (414746768082).

Almost surely, 2^{1244240304243} is an apocalyptic number.

1244240304243 is a deficient number, since it is larger than the sum of its proper divisors (414746768085).

1244240304243 is an equidigital number, since it uses as much as digits as its factorization.

1244240304243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414746768084.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 1244240304243 its reverse (3424030424421), we get a palindrome (4668270728664).

The spelling of 1244240304243 in words is "one trillion, two hundred forty-four billion, two hundred forty million, three hundred four thousand, two hundred forty-three".