203242442443 has 2 divisors, whose sum is σ = 203242442444. Its totient is φ = 203242442442.

The previous prime is 203242442441. The next prime is 203242442467. The reversal of 203242442443 is 344244242302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203242442443 - 2¹ = 203242442441 is a prime.

Together with 203242442441, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 203242442399 and 203242442408.

It is not a weakly prime, because it can be changed into another prime (203242442441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101621221221 + 101621221222.

It is an arithmetic number, because the mean of its divisors is an integer number (101621221222).

Almost surely, 2^203242442443 is an apocalyptic number.

203242442443 is a deficient number, since it is larger than the sum of its proper divisors (1).

203242442443 is an equidigital number, since it uses as much as digits as its factorization.

203242442443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 203242442443 its reverse (344244242302), we get a palindrome (547486684745).

The spelling of 203242442443 in words is "two hundred three billion, two hundred forty-two million, four hundred forty-two thousand, four hundred forty-three".