20514321213 has 4 divisors (see below), whose sum is σ = 27352428288. Its totient is φ = 13676214140.

The previous prime is 20514321203. The next prime is 20514321229. The reversal of 20514321213 is 31212341502.

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.

It is a cyclic number.

It is not a de Polignac number, because 20514321213 - 2⁴ = 20514321197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514321203) 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, 3419053533 + ... + 3419053538.

It is an arithmetic number, because the mean of its divisors is an integer number (6838107072).

Almost surely, 2^20514321213 is an apocalyptic number.

It is an amenable number.

20514321213 is a deficient number, since it is larger than the sum of its proper divisors (6838107075).

20514321213 is an equidigital number, since it uses as much as digits as its factorization.

20514321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6838107074.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 20514321213 its reverse (31212341502), we get a palindrome (51726662715).

The spelling of 20514321213 in words is "twenty billion, five hundred fourteen million, three hundred twenty-one thousand, two hundred thirteen".