1242434224243 has 2 divisors, whose sum is σ = 1242434224244. Its totient is φ = 1242434224242.

The previous prime is 1242434224223. The next prime is 1242434224247. The reversal of 1242434224243 is 3424224342421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242434224243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242434224247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621217112121 + 621217112122.

It is an arithmetic number, because the mean of its divisors is an integer number (621217112122).

Almost surely, 2^{1242434224243} is an apocalyptic number.

1242434224243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242434224243 is an equidigital number, since it uses as much as digits as its factorization.

1242434224243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294912, while the sum is 37.

Adding to 1242434224243 its reverse (3424224342421), we get a palindrome (4666658566664).

The spelling of 1242434224243 in words is "one trillion, two hundred forty-two billion, four hundred thirty-four million, two hundred twenty-four thousand, two hundred forty-three".