203203120312043 has 2 divisors, whose sum is σ = 203203120312044. Its totient is φ = 203203120312042.

The previous prime is 203203120312021. The next prime is 203203120312091. The reversal of 203203120312043 is 340213021302302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203203120312043 - 2¹⁶ = 203203120246507 is a prime.

It is not a weakly prime, because it can be changed into another prime (203203120312243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101601560156021 + 101601560156022.

It is an arithmetic number, because the mean of its divisors is an integer number (101601560156022).

Almost surely, 2^{203203120312043} is an apocalyptic number.

203203120312043 is a deficient number, since it is larger than the sum of its proper divisors (1).

203203120312043 is an equidigital number, since it uses as much as digits as its factorization.

203203120312043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 203203120312043 its reverse (340213021302302), we get a palindrome (543416141614345).

The spelling of 203203120312043 in words is "two hundred three trillion, two hundred three billion, one hundred twenty million, three hundred twelve thousand, forty-three".