12123100011 has 8 divisors (see below), whose sum is σ = 17633600064. Its totient is φ = 7347333320.

The previous prime is 12123100007. The next prime is 12123100021. The reversal of 12123100011 is 11000132121.

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 12123100011 - 2² = 12123100007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12123100011.

It is not an unprimeable number, because it can be changed into a prime (12123100001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183683301 + ... + 183683366.

It is an arithmetic number, because the mean of its divisors is an integer number (2204200008).

Almost surely, 2^12123100011 is an apocalyptic number.

12123100011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12123100011 is a deficient number, since it is larger than the sum of its proper divisors (5510500053).

12123100011 is a wasteful number, since it uses less digits than its factorization.

12123100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367366681.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12123100011 its reverse (11000132121), we get a palindrome (23123232132).

It can be divided in two parts, 121 and 23100011, that added together give a palindrome (23100132).

The spelling of 12123100011 in words is "twelve billion, one hundred twenty-three million, one hundred thousand, eleven".