123403203 has 32 divisors (see below), whose sum is σ = 227934720. Its totient is φ = 64104480.

The previous prime is 123403201. The next prime is 123403229. The reversal of 123403203 is 302304321.

123403203 is a `hidden beast` number, since 1 + 2 + 340 + 320 + 3 = 666.

It is not a de Polignac number, because 123403203 - 2¹ = 123403201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123403201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27600 + ... + 31757.

It is an arithmetic number, because the mean of its divisors is an integer number (7122960).

Almost surely, 2^123403203 is an apocalyptic number.

123403203 is a deficient number, since it is larger than the sum of its proper divisors (104531517).

123403203 is a wasteful number, since it uses less digits than its factorization.

123403203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59384 (or 59378 counting only the distinct ones).

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

The square root of 123403203 is about 11108.6994288260. The cubic root of 123403203 is about 497.8618066256.

Adding to 123403203 its reverse (302304321), we get a palindrome (425707524).

The spelling of 123403203 in words is "one hundred twenty-three million, four hundred three thousand, two hundred three".