30023021320 has 32 divisors (see below), whose sum is σ = 67556925720. Its totient is φ = 12008296960.

The previous prime is 30023021311. The next prime is 30023021341. The reversal of 30023021320 is 2312032003.

It can be written as a sum of positive squares in 4 ways, for example, as 7685327556 + 22337693764 = 87666^2 + 149458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30023021294 and 30023021303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809094 + ... + 845386.

Almost surely, 2^30023021320 is an apocalyptic number.

It is an amenable number.

30023021320 is an abundant number, since it is smaller than the sum of its proper divisors (37533904400).

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

30023021320 is a wasteful number, since it uses less digits than its factorization.

30023021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56985 (or 56981 counting only the distinct ones).

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

Adding to 30023021320 its reverse (2312032003), we get a palindrome (32335053323).

The spelling of 30023021320 in words is "thirty billion, twenty-three million, twenty-one thousand, three hundred twenty".