12000002013 has 20 divisors (see below), whose sum is σ = 17930337568. Its totient is φ = 7998033960.

The previous prime is 12000002011. The next prime is 12000002081. The reversal of 12000002013 is 31020000021.

It is a happy number.

It is not a de Polignac number, because 12000002013 - 2¹ = 12000002011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000001986 and 12000002004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000002011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 361818 + ... + 393588.

Almost surely, 2^12000002013 is an apocalyptic number.

It is an amenable number.

12000002013 is a deficient number, since it is larger than the sum of its proper divisors (5930335555).

12000002013 is an equidigital number, since it uses as much as digits as its factorization.

12000002013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36446 (or 36437 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12000002013 its reverse (31020000021), we get a palindrome (43020002034).

The spelling of 12000002013 in words is "twelve billion, two thousand, thirteen".