203112433123 has 2 divisors, whose sum is σ = 203112433124. Its totient is φ = 203112433122.

The previous prime is 203112433099. The next prime is 203112433133. The reversal of 203112433123 is 321334211302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203112433123 - 2³³ = 194522498531 is a prime.

It is not a weakly prime, because it can be changed into another prime (203112433133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556216561 + 101556216562.

It is an arithmetic number, because the mean of its divisors is an integer number (101556216562).

Almost surely, 2^203112433123 is an apocalyptic number.

203112433123 is a deficient number, since it is larger than the sum of its proper divisors (1).

203112433123 is an equidigital number, since it uses as much as digits as its factorization.

203112433123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203112433123 its reverse (321334211302), we get a palindrome (524446644425).

The spelling of 203112433123 in words is "two hundred three billion, one hundred twelve million, four hundred thirty-three thousand, one hundred twenty-three".