12020002013 has 4 divisors (see below), whose sum is σ = 12189297888. Its totient is φ = 11850706140.

The previous prime is 12020001989. The next prime is 12020002019. The reversal of 12020002013 is 31020002021.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 12020002013 - 2¹⁴ = 12019985629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020001985 and 12020002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020002019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84647831 + ... + 84647972.

It is an arithmetic number, because the mean of its divisors is an integer number (3047324472).

Almost surely, 2^12020002013 is an apocalyptic number.

It is an amenable number.

12020002013 is a deficient number, since it is larger than the sum of its proper divisors (169295875).

12020002013 is an equidigital number, since it uses as much as digits as its factorization.

12020002013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169295874.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12020002013 its reverse (31020002021), we get a palindrome (43040004034).

The spelling of 12020002013 in words is "twelve billion, twenty million, two thousand, thirteen".