30020000320 has 56 divisors (see below), whose sum is σ = 73417185144. Its totient is φ = 11683454976.

The previous prime is 30020000293. The next prime is 30020000377. The reversal of 30020000320 is 2300002003.

It can be written as a sum of positive squares in 4 ways, for example, as 16459863616 + 13560136704 = 128296^2 + 116448^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30020000297 and 30020000306.

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, 1255897 + ... + 1279576.

Almost surely, 2^30020000320 is an apocalyptic number.

It is an amenable number.

30020000320 is an abundant number, since it is smaller than the sum of its proper divisors (43397184824).

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

30020000320 is a wasteful number, since it uses less digits than its factorization.

30020000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535527 (or 2535517 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

Adding to 30020000320 its reverse (2300002003), we get a palindrome (32320002323).

The spelling of 30020000320 in words is "thirty billion, twenty million, three hundred twenty", and thus it is an aban number.