20003132213 has 4 divisors (see below), whose sum is σ = 20003421120. Its totient is φ = 20002843308.

The previous prime is 20003132209. The next prime is 20003132251. The reversal of 20003132213 is 31223130002.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20003132213 - 2² = 20003132209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003132191 and 20003132200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003132293) 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, 28148 + ... + 201986.

It is an arithmetic number, because the mean of its divisors is an integer number (5000855280).

Almost surely, 2^20003132213 is an apocalyptic number.

It is an amenable number.

20003132213 is a deficient number, since it is larger than the sum of its proper divisors (288907).

20003132213 is a wasteful number, since it uses less digits than its factorization.

20003132213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288906.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20003132213 its reverse (31223130002), we get a palindrome (51226262215).

The spelling of 20003132213 in words is "twenty billion, three million, one hundred thirty-two thousand, two hundred thirteen".