20000212213243 has 4 divisors (see below), whose sum is σ = 20425748643360. Its totient is φ = 19574675783128.

The previous prime is 20000212213199. The next prime is 20000212213279. The reversal of 20000212213243 is 34231221200002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20000212213243 - 2⁹ = 20000212212731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000212213043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212768214988 + ... + 212768215081.

It is an arithmetic number, because the mean of its divisors is an integer number (5106437160840).

Almost surely, 2^{20000212213243} is an apocalyptic number.

20000212213243 is a deficient number, since it is larger than the sum of its proper divisors (425536430117).

20000212213243 is an equidigital number, since it uses as much as digits as its factorization.

20000212213243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425536430116.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20000212213243 its reverse (34231221200002), we get a palindrome (54231433413245).

The spelling of 20000212213243 in words is "twenty trillion, two hundred twelve million, two hundred thirteen thousand, two hundred forty-three".