12011102123 has 12 divisors (see below), whose sum is σ = 12764028480. Its totient is φ = 11300287872.

The previous prime is 12011102119. The next prime is 12011102141. The reversal of 12011102123 is 32120111021.

It is not a de Polignac number, because 12011102123 - 2² = 12011102119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011102098 and 12011102107.

It is not an unprimeable number, because it can be changed into a prime (12011102143) 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, 964565 + ... + 976937.

It is an arithmetic number, because the mean of its divisors is an integer number (1063669040).

Almost surely, 2^12011102123 is an apocalyptic number.

12011102123 is a deficient number, since it is larger than the sum of its proper divisors (752926357).

12011102123 is a wasteful number, since it uses less digits than its factorization.

12011102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15766 (or 15749 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12011102123 its reverse (32120111021), we get a palindrome (44131213144).

The spelling of 12011102123 in words is "twelve billion, eleven million, one hundred two thousand, one hundred twenty-three".