12002003011123 has 2 divisors, whose sum is σ = 12002003011124. Its totient is φ = 12002003011122.

The previous prime is 12002003011109. The next prime is 12002003011181. The reversal of 12002003011123 is 32111030020021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12002003011123 - 2²⁵ = 12001969456691 is a prime.

It is a super-3 number, since 3×12002003011123³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12002003011097 and 12002003011106.

It is not a weakly prime, because it can be changed into another prime (12002003011183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001001505561 + 6001001505562.

It is an arithmetic number, because the mean of its divisors is an integer number (6001001505562).

Almost surely, 2^{12002003011123} is an apocalyptic number.

12002003011123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002003011123 is an equidigital number, since it uses as much as digits as its factorization.

12002003011123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12002003011123 its reverse (32111030020021), we get a palindrome (44113033031144).

The spelling of 12002003011123 in words is "twelve trillion, two billion, three million, eleven thousand, one hundred twenty-three".