123130203 has 16 divisors (see below), whose sum is σ = 197502720. Its totient is φ = 66656736.

The previous prime is 123130193. The next prime is 123130207. The reversal of 123130203 is 302031321.

It is a de Polignac number, because none of the positive numbers 2^k-123130203 is a prime.

It is a super-2 number, since 2×123130203² = 30322093781642418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123130207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153900 + ... + 154697.

It is an arithmetic number, because the mean of its divisors is an integer number (12343920).

Almost surely, 2^123130203 is an apocalyptic number.

123130203 is a deficient number, since it is larger than the sum of its proper divisors (74372517).

123130203 is a wasteful number, since it uses less digits than its factorization.

123130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308626.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 123130203 is about 11096.4049583638. The cubic root of 123130203 is about 497.4944022669.

Adding to 123130203 its reverse (302031321), we get a palindrome (425161524).

The spelling of 123130203 in words is "one hundred twenty-three million, one hundred thirty thousand, two hundred three".