203242340233 has 2 divisors, whose sum is σ = 203242340234. Its totient is φ = 203242340232.

The previous prime is 203242340227. The next prime is 203242340281. The reversal of 203242340233 is 332043242302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169609714569 + 33632625664 = 411837^2 + 183392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203242340233 is a prime.

It is not a weakly prime, because it can be changed into another prime (203242340033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101621170116 + 101621170117.

It is an arithmetic number, because the mean of its divisors is an integer number (101621170117).

Almost surely, 2^203242340233 is an apocalyptic number.

It is an amenable number.

203242340233 is a deficient number, since it is larger than the sum of its proper divisors (1).

203242340233 is an equidigital number, since it uses as much as digits as its factorization.

203242340233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 203242340233 its reverse (332043242302), we get a palindrome (535285582535).

The spelling of 203242340233 in words is "two hundred three billion, two hundred forty-two million, three hundred forty thousand, two hundred thirty-three".