30312311312 has 20 divisors (see below), whose sum is σ = 62184815676. Its totient is φ = 14264616960.

The previous prime is 30312311279. The next prime is 30312311327. The reversal of 30312311312 is 21311321303.

It can be written as a sum of positive squares in 2 ways, for example, as 10007201296 + 20305110016 = 100036^2 + 142496^2 .

It is a super-2 number, since 2×30312311312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55720889 + ... + 55721432.

Almost surely, 2^30312311312 is an apocalyptic number.

It is an amenable number.

30312311312 is an abundant number, since it is smaller than the sum of its proper divisors (31872504364).

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

30312311312 is a wasteful number, since it uses less digits than its factorization.

30312311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111442346 (or 111442340 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30312311312 its reverse (21311321303), we get a palindrome (51623632615).

Subtracting from 30312311312 its reverse (21311321303), we obtain a palindrome (9000990009).

The spelling of 30312311312 in words is "thirty billion, three hundred twelve million, three hundred eleven thousand, three hundred twelve".