203013212123 has 2 divisors, whose sum is σ = 203013212124. Its totient is φ = 203013212122.

The previous prime is 203013212093. The next prime is 203013212147. The reversal of 203013212123 is 321212310302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203013212123 - 2⁸ = 203013211867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203013212095 and 203013212104.

It is not a weakly prime, because it can be changed into another prime (203013212323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101506606061 + 101506606062.

It is an arithmetic number, because the mean of its divisors is an integer number (101506606062).

Almost surely, 2^203013212123 is an apocalyptic number.

203013212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

203013212123 is an equidigital number, since it uses as much as digits as its factorization.

203013212123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203013212123 its reverse (321212310302), we get a palindrome (524225522425).

The spelling of 203013212123 in words is "two hundred three billion, thirteen million, two hundred twelve thousand, one hundred twenty-three".