30112311312 has 30 divisors (see below), whose sum is σ = 84272649422. Its totient is φ = 10037437056.

The previous prime is 30112311289. The next prime is 30112311377. The reversal of 30112311312 is 21311321103.

30112311312 is a `hidden beast` number, since 30 + 1 + 12 + 311 + 312 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26466083856 + 3646227456 = 162684^2 + 60384^2 .

It is a super-2 number, since 2×30112311312² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 5 ways as a sum of consecutive naturals, for example, 104556493 + ... + 104556780.

Almost surely, 2^30112311312 is an apocalyptic number.

It is an amenable number.

30112311312 is an abundant number, since it is smaller than the sum of its proper divisors (54160338110).

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

30112311312 is a wasteful number, since it uses less digits than its factorization.

30112311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209113287 (or 209113278 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30112311312 its reverse (21311321103), we get a palindrome (51423632415).

The spelling of 30112311312 in words is "thirty billion, one hundred twelve million, three hundred eleven thousand, three hundred twelve".