30020250213 has 10 divisors (see below), whose sum is σ = 44845065254. Its totient is φ = 20013500088.

The previous prime is 30020250191. The next prime is 30020250217. The reversal of 30020250213 is 31205202003.

It can be written as a sum of positive squares in only one way, i.e., 25339227489 + 4681022724 = 159183^2 + 68418^2 .

It is not a de Polignac number, because 30020250213 - 2¹² = 30020246117 is a prime.

It is a super-2 number, since 2×30020250213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020250217) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 185310106 + ... + 185310267.

Almost surely, 2^30020250213 is an apocalyptic number.

It is an amenable number.

30020250213 is a deficient number, since it is larger than the sum of its proper divisors (14824815041).

30020250213 is an equidigital number, since it uses as much as digits as its factorization.

30020250213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370620385 (or 370620376 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 30020250213 its reverse (31205202003), we get a palindrome (61225452216).

The spelling of 30020250213 in words is "thirty billion, twenty million, two hundred fifty thousand, two hundred thirteen".