203031010123 has 2 divisors, whose sum is σ = 203031010124. Its totient is φ = 203031010122.

The previous prime is 203031010043. The next prime is 203031010153. The reversal of 203031010123 is 321010130302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203031010123 - 2³³ = 194441075531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203031010097 and 203031010106.

It is not a weakly prime, because it can be changed into another prime (203031010153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101515505061 + 101515505062.

It is an arithmetic number, because the mean of its divisors is an integer number (101515505062).

Almost surely, 2^203031010123 is an apocalyptic number.

203031010123 is a deficient number, since it is larger than the sum of its proper divisors (1).

203031010123 is an equidigital number, since it uses as much as digits as its factorization.

203031010123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 203031010123 its reverse (321010130302), we get a palindrome (524041140425).

The spelling of 203031010123 in words is "two hundred three billion, thirty-one million, ten thousand, one hundred twenty-three".