20000213213 has 6 divisors (see below), whose sum is σ = 20200206042. Its totient is φ = 19802181200.

The previous prime is 20000213183. The next prime is 20000213221. The reversal of 20000213213 is 31231200002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18243094489 + 1757118724 = 135067^2 + 41918^2 .

It is not a de Polignac number, because 20000213213 - 2⁸ = 20000212957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000213113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 970106 + ... + 990507.

It is an arithmetic number, because the mean of its divisors is an integer number (3366701007).

Almost surely, 2^20000213213 is an apocalyptic number.

It is an amenable number.

20000213213 is a deficient number, since it is larger than the sum of its proper divisors (199992829).

20000213213 is an equidigital number, since it uses as much as digits as its factorization.

20000213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960815 (or 1960714 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20000213213 its reverse (31231200002), we get a palindrome (51231413215).

The spelling of 20000213213 in words is "twenty billion, two hundred thirteen thousand, two hundred thirteen".