30012112 has 20 divisors (see below), whose sum is σ = 62621860. Its totient is φ = 13851648.

The previous prime is 30012107. The next prime is 30012139. The reversal of 30012112 is 21121003.

It can be written as a sum of positive squares in 2 ways, for example, as 3013696 + 26998416 = 1736^2 + 5196^2 .

It is a congruent number.

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, 71937 + ... + 72352.

It is an arithmetic number, because the mean of its divisors is an integer number (3131093).

Almost surely, 2^30012112 is an apocalyptic number.

It is an amenable number.

30012112 is an abundant number, since it is smaller than the sum of its proper divisors (32609748).

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

30012112 is a wasteful number, since it uses less digits than its factorization.

30012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144310 (or 144304 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 30012112 is about 5478.3311327447. The cubic root of 30012112 is about 310.7650614137.

Adding to 30012112 its reverse (21121003), we get a palindrome (51133115).

The spelling of 30012112 in words is "thirty million, twelve thousand, one hundred twelve".