30012115124 has 6 divisors (see below), whose sum is σ = 52521201474. Its totient is φ = 15006057560.

The previous prime is 30012115123. The next prime is 30012115193. The reversal of 30012115124 is 42151121003.

It can be written as a sum of positive squares in only one way, i.e., 19661087524 + 10351027600 = 140218^2 + 101740^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30012115096 and 30012115105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012115121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3751514387 + ... + 3751514394.

It is an arithmetic number, because the mean of its divisors is an integer number (8753533579).

Almost surely, 2^30012115124 is an apocalyptic number.

It is an amenable number.

30012115124 is a deficient number, since it is larger than the sum of its proper divisors (22509086350).

30012115124 is a wasteful number, since it uses less digits than its factorization.

30012115124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503028785 (or 7503028783 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 30012115124 its reverse (42151121003), we get a palindrome (72163236127).

The spelling of 30012115124 in words is "thirty billion, twelve million, one hundred fifteen thousand, one hundred twenty-four".