20001230213 has 4 divisors (see below), whose sum is σ = 21053926560. Its totient is φ = 18948533868.

The previous prime is 20001230189. The next prime is 20001230219. The reversal of 20001230213 is 31203210002.

It is a happy number.

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: 31203210002 = 2 ⋅15601605001.

It is a cyclic number.

It is not a de Polignac number, because 20001230213 - 2²⁰ = 20000181637 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 (20001230219) 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, 526348145 + ... + 526348182.

It is an arithmetic number, because the mean of its divisors is an integer number (5263481640).

Almost surely, 2^20001230213 is an apocalyptic number.

It is an amenable number.

20001230213 is a deficient number, since it is larger than the sum of its proper divisors (1052696347).

20001230213 is a wasteful number, since it uses less digits than its factorization.

20001230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052696346.

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

Adding to 20001230213 its reverse (31203210002), we get a palindrome (51204440215).

The spelling of 20001230213 in words is "twenty billion, one million, two hundred thirty thousand, two hundred thirteen".