30021023320 has 16 divisors (see below), whose sum is σ = 67547302560. Its totient is φ = 12008409312.

The previous prime is 30021023293. The next prime is 30021023323. The reversal of 30021023320 is 2332012003.

It is a junction number, because it is equal to n+sod(n) for n = 30021023294 and 30021023303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021023323) 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, 375262752 + ... + 375262831.

It is an arithmetic number, because the mean of its divisors is an integer number (4221706410).

Almost surely, 2^30021023320 is an apocalyptic number.

It is an amenable number.

30021023320 is an abundant number, since it is smaller than the sum of its proper divisors (37526279240).

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

30021023320 is a wasteful number, since it uses less digits than its factorization.

30021023320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750525594 (or 750525590 counting only the distinct ones).

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

Adding to 30021023320 its reverse (2332012003), we get a palindrome (32353035323).

The spelling of 30021023320 in words is "thirty billion, twenty-one million, twenty-three thousand, three hundred twenty".