30321210205 has 48 divisors (see below), whose sum is σ = 44368335360. Its totient is φ = 19698681600.

The previous prime is 30321210193. The next prime is 30321210221. The reversal of 30321210205 is 50201212303.

It is not a de Polignac number, because 30321210205 - 2⁷ = 30321210077 is a prime.

It is a super-2 number, since 2×30321210205² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235531 + ... + 340759.

It is an arithmetic number, because the mean of its divisors is an integer number (924340320).

Almost surely, 2^30321210205 is an apocalyptic number.

It is an amenable number.

30321210205 is a deficient number, since it is larger than the sum of its proper divisors (14047125155).

30321210205 is a wasteful number, since it uses less digits than its factorization.

30321210205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105302 (or 105289 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 30321210205 its reverse (50201212303), we get a palindrome (80522422508).

The spelling of 30321210205 in words is "thirty billion, three hundred twenty-one million, two hundred ten thousand, two hundred five".