12100302321 has 4 divisors (see below), whose sum is σ = 16133736432. Its totient is φ = 8066868212.

The previous prime is 12100302311. The next prime is 12100302329. The reversal of 12100302321 is 12320300121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12320300121 = 3 ⋅4106766707.

It is a cyclic number.

It is not a de Polignac number, because 12100302321 - 2¹⁴ = 12100285937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12100302321.

It is not an unprimeable number, because it can be changed into a prime (12100302329) 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, 2016717051 + ... + 2016717056.

It is an arithmetic number, because the mean of its divisors is an integer number (4033434108).

Almost surely, 2^12100302321 is an apocalyptic number.

It is an amenable number.

12100302321 is a deficient number, since it is larger than the sum of its proper divisors (4033434111).

12100302321 is an equidigital number, since it uses as much as digits as its factorization.

12100302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033434110.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12100302321 its reverse (12320300121), we get a palindrome (24420602442).

The spelling of 12100302321 in words is "twelve billion, one hundred million, three hundred two thousand, three hundred twenty-one".