12100534321 has 4 divisors (see below), whose sum is σ = 12192904944. Its totient is φ = 12008163700.

The previous prime is 12100534273. The next prime is 12100534333. The reversal of 12100534321 is 12343500121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12100534321 - 2¹¹ = 12100532273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100534292 and 12100534301.

It is not an unprimeable number, because it can be changed into a prime (12100531321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46185115 + ... + 46185376.

It is an arithmetic number, because the mean of its divisors is an integer number (3048226236).

Almost surely, 2^12100534321 is an apocalyptic number.

It is an amenable number.

12100534321 is a deficient number, since it is larger than the sum of its proper divisors (92370623).

12100534321 is an equidigital number, since it uses as much as digits as its factorization.

12100534321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92370622.

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 12100534321 in words is "twelve billion, one hundred million, five hundred thirty-four thousand, three hundred twenty-one".