20004015213 has 24 divisors (see below), whose sum is σ = 35562695168. Its totient is φ = 10551568032.

The previous prime is 20004015181. The next prime is 20004015223. The reversal of 20004015213 is 31251040002.

20004015213 is a `hidden beast` number, since 200 + 0 + 401 + 52 + 13 = 666.

It is not a de Polignac number, because 20004015213 - 2⁵ = 20004015181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004015223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12211645 + ... + 12213282.

Almost surely, 2^20004015213 is an apocalyptic number.

It is an amenable number.

20004015213 is a deficient number, since it is larger than the sum of its proper divisors (15558679955).

20004015213 is a wasteful number, since it uses less digits than its factorization.

20004015213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24424953 (or 24424950 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 20004015213 its reverse (31251040002), we get a palindrome (51255055215).

The spelling of 20004015213 in words is "twenty billion, four million, fifteen thousand, two hundred thirteen".