30211323312 has 160 divisors (see below), whose sum is σ = 84077118720. Its totient is φ = 9319587840.

The previous prime is 30211323281. The next prime is 30211323347. The reversal of 30211323312 is 21332311203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7121512 + ... + 7125752.

It is an arithmetic number, because the mean of its divisors is an integer number (525481992).

Almost surely, 2^30211323312 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 30211323312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42038559360).

30211323312 is an abundant number, since it is smaller than the sum of its proper divisors (53865795408).

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

30211323312 is a wasteful number, since it uses less digits than its factorization.

30211323312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451 (or 4445 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30211323312 its reverse (21332311203), we get a palindrome (51543634515).

The spelling of 30211323312 in words is "thirty billion, two hundred eleven million, three hundred twenty-three thousand, three hundred twelve".