12011112320123 has 12 divisors (see below), whose sum is σ = 14422823485632. Its totient is φ = 9963134642160.

The previous prime is 12011112320087. The next prime is 12011112320149. The reversal of 12011112320123 is 32102321111021.

It is not a de Polignac number, because 12011112320123 - 2²⁶ = 12011045211259 is a prime.

It is a super-2 number, since 2×12011112320123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011112320095 and 12011112320104.

It is not an unprimeable number, because it can be changed into a prime (12011112322123) 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 11 ways as a sum of consecutive naturals, for example, 3953623340 + ... + 3953626377.

It is an arithmetic number, because the mean of its divisors is an integer number (1201901957136).

Almost surely, 2^{12011112320123} is an apocalyptic number.

12011112320123 is a deficient number, since it is larger than the sum of its proper divisors (2411711165509).

12011112320123 is an equidigital number, since it uses as much as digits as its factorization.

12011112320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7907249762 (or 7907249755 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12011112320123 its reverse (32102321111021), we get a palindrome (44113433431144).

The spelling of 12011112320123 in words is "twelve trillion, eleven billion, one hundred twelve million, three hundred twenty thousand, one hundred twenty-three".