12003100123 has 32 divisors (see below), whose sum is σ = 14337792000. Its totient is φ = 10039784832.

The previous prime is 12003100093. The next prime is 12003100127. The reversal of 12003100123 is 32100130021.

It is not a de Polignac number, because 12003100123 - 2²¹ = 12001002971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12003100127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6753811 + ... + 6755587.

It is an arithmetic number, because the mean of its divisors is an integer number (448056000).

Almost surely, 2^12003100123 is an apocalyptic number.

12003100123 is a deficient number, since it is larger than the sum of its proper divisors (2334691877).

12003100123 is an equidigital number, since it uses as much as digits as its factorization.

12003100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12003100123 its reverse (32100130021), we get a palindrome (44103230144).

The spelling of 12003100123 in words is "twelve billion, three million, one hundred thousand, one hundred twenty-three".