30023322320 has 80 divisors (see below), whose sum is σ = 72940545792. Its totient is φ = 11471201280.

The previous prime is 30023322281. The next prime is 30023322337. The reversal of 30023322320 is 2322332003.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×30023322320² (a number of 22 digits) contains 22 as substring.

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 = 30023322292 and 30023322301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356140 + ... + 1378100.

Almost surely, 2^30023322320 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 30023322320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36470272896).

30023322320 is an abundant number, since it is smaller than the sum of its proper divisors (42917223472).

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

30023322320 is a wasteful number, since it uses less digits than its factorization.

30023322320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22740 (or 22734 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 30023322320 its reverse (2322332003), we get a palindrome (32345654323).

The spelling of 30023322320 in words is "thirty billion, twenty-three million, three hundred twenty-two thousand, three hundred twenty".