12003430123 has 8 divisors (see below), whose sum is σ = 12251269440. Its totient is φ = 11757238080.

The previous prime is 12003430111. The next prime is 12003430129. The reversal of 12003430123 is 32103430021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12003430123 - 2¹⁷ = 12003299051 is a prime.

It is a super-3 number, since 3×12003430123³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12003430123.

It is not an unprimeable number, because it can be changed into a prime (12003430129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397090 + ... + 426247.

It is an arithmetic number, because the mean of its divisors is an integer number (1531408680).

Almost surely, 2^12003430123 is an apocalyptic number.

12003430123 is a deficient number, since it is larger than the sum of its proper divisors (247839317).

12003430123 is an equidigital number, since it uses as much as digits as its factorization.

12003430123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823637.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12003430123 its reverse (32103430021), we get a palindrome (44106860144).

The spelling of 12003430123 in words is "twelve billion, three million, four hundred thirty thousand, one hundred twenty-three".