12100112111321 has 16 divisors (see below), whose sum is σ = 14313105690240. Its totient is φ = 10121410442880.

The previous prime is 12100112111299. The next prime is 12100112111323. The reversal of 12100112111321 is 12311121100121.

It is a cyclic number.

It is not a de Polignac number, because 12100112111321 - 2²⁶ = 12100045002457 is a prime.

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 12100112111321.

It is not an unprimeable number, because it can be changed into a prime (12100112111323) 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, 1064957540 + ... + 1064968901.

It is an arithmetic number, because the mean of its divisors is an integer number (894569105640).

Almost surely, 2^{12100112111321} is an apocalyptic number.

It is an amenable number.

12100112111321 is a deficient number, since it is larger than the sum of its proper divisors (2212993578919).

12100112111321 is a wasteful number, since it uses less digits than its factorization.

12100112111321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129926496.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12100112111321 its reverse (12311121100121), we get a palindrome (24411233211442).

The spelling of 12100112111321 in words is "twelve trillion, one hundred billion, one hundred twelve million, one hundred eleven thousand, three hundred twenty-one".