13000200021 has 12 divisors (see below), whose sum is σ = 19383811200. Its totient is φ = 8387225640.

The previous prime is 13000199977. The next prime is 13000200077. The reversal of 13000200021 is 12000200031.

It is a happy number.

It is not a de Polignac number, because 13000200021 - 2¹³ = 13000191829 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 13000199976 and 13000200012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000200221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23297571 + ... + 23298128.

It is an arithmetic number, because the mean of its divisors is an integer number (1615317600).

Almost surely, 2^13000200021 is an apocalyptic number.

It is an amenable number.

13000200021 is a deficient number, since it is larger than the sum of its proper divisors (6383611179).

13000200021 is a wasteful number, since it uses less digits than its factorization.

13000200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46595736 (or 46595733 counting only the distinct ones).

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

Adding to 13000200021 its reverse (12000200031), we get a palindrome (25000400052).

The spelling of 13000200021 in words is "thirteen billion, two hundred thousand, twenty-one".