12042203123 has 2 divisors, whose sum is σ = 12042203124. Its totient is φ = 12042203122.

The previous prime is 12042203071. The next prime is 12042203143. The reversal of 12042203123 is 32130224021.

It is an a-pointer prime, because the next prime (12042203143) can be obtained adding 12042203123 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12042203123 - 2²⁰ = 12041154547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12042203095 and 12042203104.

It is not a weakly prime, because it can be changed into another prime (12042203143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021101561 + 6021101562.

It is an arithmetic number, because the mean of its divisors is an integer number (6021101562).

Almost surely, 2^12042203123 is an apocalyptic number.

12042203123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042203123 is an equidigital number, since it uses as much as digits as its factorization.

12042203123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12042203123 its reverse (32130224021), we get a palindrome (44172427144).

The spelling of 12042203123 in words is "twelve billion, forty-two million, two hundred three thousand, one hundred twenty-three".