30223012320 has 72 divisors (see below), whose sum is σ = 103136034456. Its totient is φ = 8059469568.

The previous prime is 30223012319. The next prime is 30223012333. The reversal of 30223012320 is 2321032203.

It is a happy number.

30223012320 is a `hidden beast` number, since 302 + 2 + 30 + 12 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a junction number, because it is equal to n+sod(n) for n = 30223012293 and 30223012302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10492662 + ... + 10495541.

It is an arithmetic number, because the mean of its divisors is an integer number (1432444923).

Almost surely, 2^30223012320 is an apocalyptic number.

30223012320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30223012320 is an abundant number, since it is smaller than the sum of its proper divisors (72913022136).

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

30223012320 is a wasteful number, since it uses less digits than its factorization.

30223012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20988224 (or 20988213 counting only the distinct ones).

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

Adding to 30223012320 its reverse (2321032203), we get a palindrome (32544044523).

The spelling of 30223012320 in words is "thirty billion, two hundred twenty-three million, twelve thousand, three hundred twenty".