20213403213 has 32 divisors (see below), whose sum is σ = 28740902400. Its totient is φ = 12600398016.

The previous prime is 20213403179. The next prime is 20213403239. The reversal of 20213403213 is 31230431202.

It is not a de Polignac number, because 20213403213 - 2⁹ = 20213402701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20213403213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213403263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1363306 + ... + 1378052.

It is an arithmetic number, because the mean of its divisors is an integer number (898153200).

Almost surely, 2^20213403213 is an apocalyptic number.

It is an amenable number.

20213403213 is a deficient number, since it is larger than the sum of its proper divisors (8527499187).

20213403213 is a wasteful number, since it uses less digits than its factorization.

20213403213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15081.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20213403213 its reverse (31230431202), we get a palindrome (51443834415).

The spelling of 20213403213 in words is "twenty billion, two hundred thirteen million, four hundred three thousand, two hundred thirteen".