30231322220 has 96 divisors (see below), whose sum is σ = 70369992000. Its totient is φ = 10817971200.

The previous prime is 30231322217. The next prime is 30231322259. The reversal of 30231322220 is 2222313203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30231322192 and 30231322201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3568790 + ... + 3577250.

It is an arithmetic number, because the mean of its divisors is an integer number (733020750).

Almost surely, 2^30231322220 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 30231322220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35184996000).

30231322220 is an abundant number, since it is smaller than the sum of its proper divisors (40138669780).

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

30231322220 is a wasteful number, since it uses less digits than its factorization.

30231322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739 (or 8737 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30231322220 its reverse (2222313203), we get a palindrome (32453635423).

The spelling of 30231322220 in words is "thirty billion, two hundred thirty-one million, three hundred twenty-two thousand, two hundred twenty".