12003022123 has 4 divisors (see below), whose sum is σ = 12014802360. Its totient is φ = 11991241888.

The previous prime is 12003022099. The next prime is 12003022169. The reversal of 12003022123 is 32122030021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32122030021 = 19 ⋅1690633159.

It is a cyclic number.

It is not a de Polignac number, because 12003022123 - 2¹⁷ = 12002891051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12003022097 and 12003022106.

It is not an unprimeable number, because it can be changed into a prime (12003022183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5888590 + ... + 5890627.

It is an arithmetic number, because the mean of its divisors is an integer number (3003700590).

Almost surely, 2^12003022123 is an apocalyptic number.

12003022123 is a deficient number, since it is larger than the sum of its proper divisors (11780237).

12003022123 is a wasteful number, since it uses less digits than its factorization.

12003022123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11780236.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12003022123 its reverse (32122030021), we get a palindrome (44125052144).

The spelling of 12003022123 in words is "twelve billion, three million, twenty-two thousand, one hundred twenty-three".