12011103211123 has 8 divisors (see below), whose sum is σ = 12263388894288. Its totient is φ = 11761378804224.

The previous prime is 12011103211099. The next prime is 12011103211139. The reversal of 12011103211123 is 32111230111021.

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 12011103211123 - 2⁹ = 12011103210611 is a prime.

It is a super-2 number, since 2×12011103211123² (a number of 27 digits) contains 22 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 12011103211123.

It is not an unprimeable number, because it can be changed into a prime (12011103211193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640309590 + ... + 640328347.

It is an arithmetic number, because the mean of its divisors is an integer number (1532923611786).

Almost surely, 2^{12011103211123} is an apocalyptic number.

12011103211123 is a deficient number, since it is larger than the sum of its proper divisors (252285683165).

12011103211123 is a wasteful number, since it uses less digits than its factorization.

12011103211123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280638133.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12011103211123 its reverse (32111230111021), we get a palindrome (44122333322144).

The spelling of 12011103211123 in words is "twelve trillion, eleven billion, one hundred three million, two hundred eleven thousand, one hundred twenty-three".