12001020013 has 8 divisors (see below), whose sum is σ = 12201162776. Its totient is φ = 11800987200.

The previous prime is 12001020011. The next prime is 12001020019. The reversal of 12001020013 is 31002010021.

It can be written as a sum of positive squares in 4 ways, for example, as 123943689 + 11877076324 = 11133^2 + 108982^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12001020013 - 2¹ = 12001020011 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 (12001020011) 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, 209503 + ... + 260563.

It is an arithmetic number, because the mean of its divisors is an integer number (1525145347).

Almost surely, 2^12001020013 is an apocalyptic number.

It is an amenable number.

12001020013 is a deficient number, since it is larger than the sum of its proper divisors (200142763).

12001020013 is an equidigital number, since it uses as much as digits as its factorization.

12001020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54975.

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

Adding to 12001020013 its reverse (31002010021), we get a palindrome (43003030034).

The spelling of 12001020013 in words is "twelve billion, one million, twenty thousand, thirteen".