30123112112 has 20 divisors (see below), whose sum is σ = 58367149680. Its totient is φ = 15060621888.

The previous prime is 30123112109. The next prime is 30123112133. The reversal of 30123112112 is 21121132103.

It is a super-2 number, since 2×30123112112² (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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260378 + ... + 357830.

It is an arithmetic number, because the mean of its divisors is an integer number (2918357484).

Almost surely, 2^30123112112 is an apocalyptic number.

It is an amenable number.

30123112112 is a deficient number, since it is larger than the sum of its proper divisors (28244037568).

30123112112 is a wasteful number, since it uses less digits than its factorization.

30123112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116780 (or 116774 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 30123112112 its reverse (21121132103), we get a palindrome (51244244215).

The spelling of 30123112112 in words is "thirty billion, one hundred twenty-three million, one hundred twelve thousand, one hundred twelve".