12321000101 has 4 divisors (see below), whose sum is σ = 12322003212. Its totient is φ = 12319996992.

The previous prime is 12321000071. The next prime is 12321000103. The reversal of 12321000101 is 10100012321.

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 6491524900 + 5829475201 = 80570^2 + 76351^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321000101 - 2²² = 12316805797 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 (12321000103) 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, 482900 + ... + 507773.

It is an arithmetic number, because the mean of its divisors is an integer number (3080500803).

Almost surely, 2^12321000101 is an apocalyptic number.

It is an amenable number.

12321000101 is a deficient number, since it is larger than the sum of its proper divisors (1003111).

12321000101 is an equidigital number, since it uses as much as digits as its factorization.

12321000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003110.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12321000101 its reverse (10100012321), we get a palindrome (22421012422).

The spelling of 12321000101 in words is "twelve billion, three hundred twenty-one million, one hundred one", and thus it is an aban number.