30312300220 has 12 divisors (see below), whose sum is σ = 63655830504. Its totient is φ = 12124920080.

The previous prime is 30312300191. The next prime is 30312300223. The reversal of 30312300220 is 2200321303.

It is a junction number, because it is equal to n+sod(n) for n = 30312300194 and 30312300203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312300223) 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, 757807486 + ... + 757807525.

It is an arithmetic number, because the mean of its divisors is an integer number (5304652542).

Almost surely, 2^30312300220 is an apocalyptic number.

It is an amenable number.

30312300220 is an abundant number, since it is smaller than the sum of its proper divisors (33343530284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30312300220 is a wasteful number, since it uses less digits than its factorization.

30312300220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515615020 (or 1515615018 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30312300220 its reverse (2200321303), we get a palindrome (32512621523).

The spelling of 30312300220 in words is "thirty billion, three hundred twelve million, three hundred thousand, two hundred twenty".