12000010321 has 4 divisors (see below), whose sum is σ = 12923088052. Its totient is φ = 11076932592.

The previous prime is 12000010313. The next prime is 12000010327. The reversal of 12000010321 is 12301000021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1072235025 + 10927775296 = 32745^2 + 104536^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000010321 - 2³ = 12000010313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000010298 and 12000010307.

It is not an unprimeable number, because it can be changed into a prime (12000010327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461538846 + ... + 461538871.

It is an arithmetic number, because the mean of its divisors is an integer number (3230772013).

Almost surely, 2^12000010321 is an apocalyptic number.

It is an amenable number.

12000010321 is a deficient number, since it is larger than the sum of its proper divisors (923077731).

12000010321 is an equidigital number, since it uses as much as digits as its factorization.

12000010321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923077730.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 12000010321 its reverse (12301000021), we get a palindrome (24301010342).

It can be divided in two parts, 120000 and 10321, that added together give a 4-th power (130321 = 19⁴).

The spelling of 12000010321 in words is "twelve billion, ten thousand, three hundred twenty-one".