30302220312 has 256 divisors, whose sum is σ = 103951411200. Its totient is φ = 7964490240.

The previous prime is 30302220293. The next prime is 30302220317. The reversal of 30302220312 is 21302220303.

It is a happy number.

30302220312 is a `hidden beast` number, since 30 + 302 + 2 + 20 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302220317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6110538 + ... + 6115494.

It is an arithmetic number, because the mean of its divisors is an integer number (406060200).

Almost surely, 2^30302220312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30302220312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51975705600).

30302220312 is an abundant number, since it is smaller than the sum of its proper divisors (73649190888).

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

30302220312 is a wasteful number, since it uses less digits than its factorization.

30302220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303 (or 5293 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30302220312 its reverse (21302220303), we get a palindrome (51604440615).

Subtracting from 30302220312 its reverse (21302220303), we obtain a palindrome (9000000009).

The spelling of 30302220312 in words is "thirty billion, three hundred two million, two hundred twenty thousand, three hundred twelve".