20001334213 has 4 divisors (see below), whose sum is σ = 22858667680. Its totient is φ = 17144000748.

The previous prime is 20001334187. The next prime is 20001334279. The reversal of 20001334213 is 31243310002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31243310002 = 2 ⋅15621655001.

It is a de Polignac number, because none of the positive numbers 2^k-20001334213 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 (20001314213) 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, 1428666723 + ... + 1428666736.

It is an arithmetic number, because the mean of its divisors is an integer number (5714666920).

Almost surely, 2^20001334213 is an apocalyptic number.

It is an amenable number.

20001334213 is a deficient number, since it is larger than the sum of its proper divisors (2857333467).

20001334213 is an equidigital number, since it uses as much as digits as its factorization.

20001334213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857333466.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20001334213 its reverse (31243310002), we get a palindrome (51244644215).

The spelling of 20001334213 in words is "twenty billion, one million, three hundred thirty-four thousand, two hundred thirteen".