203230002123 has 12 divisors (see below), whose sum is σ = 294870838080. Its totient is φ = 134879103216.

The previous prime is 203230002121. The next prime is 203230002133. The reversal of 203230002123 is 321200032302.

It is a happy number.

It is not a de Polignac number, because 203230002123 - 2¹ = 203230002121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203230002096 and 203230002105.

It is not an unprimeable number, because it can be changed into a prime (203230002121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50628288 + ... + 50632301.

It is an arithmetic number, because the mean of its divisors is an integer number (24572569840).

Almost surely, 2^203230002123 is an apocalyptic number.

203230002123 is a deficient number, since it is larger than the sum of its proper divisors (91640835957).

203230002123 is a wasteful number, since it uses less digits than its factorization.

203230002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101260818 (or 101260815 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 203230002123 its reverse (321200032302), we get a palindrome (524430034425).

The spelling of 203230002123 in words is "two hundred three billion, two hundred thirty million, two thousand, one hundred twenty-three".