30311105312 has 48 divisors (see below), whose sum is σ = 64416824640. Its totient is φ = 13996722432.

The previous prime is 30311105311. The next prime is 30311105317. The reversal of 30311105312 is 21350111303.

It is not an unprimeable number, because it can be changed into a prime (30311105311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688718 + ... + 731405.

It is an arithmetic number, because the mean of its divisors is an integer number (1342017180).

Almost surely, 2^30311105312 is an apocalyptic number.

30311105312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30311105312 is an abundant number, since it is smaller than the sum of its proper divisors (34105719328).

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

30311105312 is a wasteful number, since it uses less digits than its factorization.

30311105312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420185 (or 1420177 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 30311105312 its reverse (21350111303), we get a palindrome (51661216615).

The spelling of 30311105312 in words is "thirty billion, three hundred eleven million, one hundred five thousand, three hundred twelve".