12100123120111 has 16 divisors (see below), whose sum is σ = 13754947046400. Its totient is φ = 10552009222368.

The previous prime is 12100123120081. The next prime is 12100123120123. The reversal of 12100123120111 is 11102132100121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12100123120111 - 2⁵ = 12100123120079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100123120181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68140231 + ... + 68317576.

It is an arithmetic number, because the mean of its divisors is an integer number (859684190400).

Almost surely, 2^{12100123120111} is an apocalyptic number.

12100123120111 is a deficient number, since it is larger than the sum of its proper divisors (1654823926289).

12100123120111 is a wasteful number, since it uses less digits than its factorization.

12100123120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136458198.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12100123120111 its reverse (11102132100121), we get a palindrome (23202255220232).

The spelling of 12100123120111 in words is "twelve trillion, one hundred billion, one hundred twenty-three million, one hundred twenty thousand, one hundred eleven".