20020100213 has 4 divisors (see below), whose sum is σ = 20446059840. Its totient is φ = 19594140588.

The previous prime is 20020100159. The next prime is 20020100227. The reversal of 20020100213 is 31200102002.

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.

It is a cyclic number.

It is not a de Polignac number, because 20020100213 - 2¹⁴ = 20020083829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020100194 and 20020100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020100413) 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, 212979743 + ... + 212979836.

It is an arithmetic number, because the mean of its divisors is an integer number (5111514960).

Almost surely, 2^20020100213 is an apocalyptic number.

It is an amenable number.

20020100213 is a deficient number, since it is larger than the sum of its proper divisors (425959627).

20020100213 is an equidigital number, since it uses as much as digits as its factorization.

20020100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425959626.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20020100213 its reverse (31200102002), we get a palindrome (51220202215).

The spelling of 20020100213 in words is "twenty billion, twenty million, one hundred thousand, two hundred thirteen".