30203130221 has 16 divisors (see below), whose sum is σ = 34353469440. Its totient is φ = 26301804480.

The previous prime is 30203130203. The next prime is 30203130239. The reversal of 30203130221 is 12203130203.

It is an interprime number because it is at equal distance from previous prime (30203130203) and next prime (30203130239).

It is a cyclic number.

It is not a de Polignac number, because 30203130221 - 2¹⁰ = 30203129197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30203130221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203130281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332246 + ... + 413271.

It is an arithmetic number, because the mean of its divisors is an integer number (2147091840).

Almost surely, 2^30203130221 is an apocalyptic number.

It is an amenable number.

30203130221 is a deficient number, since it is larger than the sum of its proper divisors (4150339219).

30203130221 is a wasteful number, since it uses less digits than its factorization.

30203130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745684.

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

Adding to 30203130221 its reverse (12203130203), we get a palindrome (42406260424).

The spelling of 30203130221 in words is "thirty billion, two hundred three million, one hundred thirty thousand, two hundred twenty-one".