30311323020320 has 96 divisors (see below), whose sum is σ = 72248160101040. Its totient is φ = 12016577413120.

The previous prime is 30311323020287. The next prime is 30311323020361. The reversal of 30311323020320 is 2302032311303.

It can be written as a sum of positive squares in 8 ways, for example, as 2706933116176 + 27604389904144 = 1645276^2 + 5253988^2 .

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, 459361730 + ... + 459427710.

Almost surely, 2^{30311323020320} 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 30311323020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36124080050520).

30311323020320 is an abundant number, since it is smaller than the sum of its proper divisors (41936837080720).

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

30311323020320 is a wasteful number, since it uses less digits than its factorization.

30311323020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91518 (or 91510 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30311323020320 its reverse (2302032311303), we get a palindrome (32613355331623).

The spelling of 30311323020320 in words is "thirty trillion, three hundred eleven billion, three hundred twenty-three million, twenty thousand, three hundred twenty".