20213100213 has 8 divisors (see below), whose sum is σ = 26960467776. Its totient is φ = 13470566400.

The previous prime is 20213100179. The next prime is 20213100233. The reversal of 20213100213 is 31200131202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20213100213 - 2⁸ = 20213099957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20213100192 and 20213100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213100233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198668 + ... + 1215413.

It is an arithmetic number, because the mean of its divisors is an integer number (3370058472).

Almost surely, 2^20213100213 is an apocalyptic number.

It is an amenable number.

20213100213 is a deficient number, since it is larger than the sum of its proper divisors (6747367563).

20213100213 is a wasteful number, since it uses less digits than its factorization.

20213100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416875.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20213100213 its reverse (31200131202), we get a palindrome (51413231415).

The spelling of 20213100213 in words is "twenty billion, two hundred thirteen million, one hundred thousand, two hundred thirteen".