30031122312 has 48 divisors (see below), whose sum is σ = 81650815740. Its totient is φ = 9971417088.

The previous prime is 30031122283. The next prime is 30031122313. The reversal of 30031122312 is 21322113003.

30031122312 is a `hidden beast` number, since 300 + 31 + 1 + 22 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19713844836 + 10317277476 = 140406^2 + 101574^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30031122313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 792973 + ... + 829980.

Almost surely, 2^30031122312 is an apocalyptic number.

It is an amenable number.

30031122312 is an abundant number, since it is smaller than the sum of its proper divisors (51619693428).

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

30031122312 is a wasteful number, since it uses less digits than its factorization.

30031122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623222 (or 1623215 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30031122312 its reverse (21322113003), we get a palindrome (51353235315).

The spelling of 30031122312 in words is "thirty billion, thirty-one million, one hundred twenty-two thousand, three hundred twelve".