12320002021 has 8 divisors (see below), whose sum is σ = 13114137600. Its totient is φ = 11540437920.

The previous prime is 12320002001. The next prime is 12320002043. The reversal of 12320002021 is 12020002321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12320002021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12320001992 and 12320002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320002001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3641125 + ... + 3644506.

It is an arithmetic number, because the mean of its divisors is an integer number (1639267200).

Almost surely, 2^12320002021 is an apocalyptic number.

It is an amenable number.

12320002021 is a deficient number, since it is larger than the sum of its proper divisors (794135579).

12320002021 is an equidigital number, since it uses as much as digits as its factorization.

12320002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285739.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12320002021 its reverse (12020002321), we get a palindrome (24340004342).

The spelling of 12320002021 in words is "twelve billion, three hundred twenty million, two thousand, twenty-one".