30012 has 24 divisors (see below), whose sum is σ = 72912. Its totient is φ = 9600.

The previous prime is 30011. The next prime is 30013. The reversal of 30012 is 21003.

It is an interprime number because it is at equal distance from previous prime (30011) and next prime (30013).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462 + ... + 522.

It is an arithmetic number, because the mean of its divisors is an integer number (3038).

2³⁰⁰¹² is an apocalyptic number.

It is an amenable number.

30012 is an abundant number, since it is smaller than the sum of its proper divisors (42900).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36456).

30012 is a wasteful number, since it uses less digits than its factorization.

30012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 30012 is about 173.2397183096. The cubic root of 30012 is about 31.0764674839.

Adding to 30012 its reverse (21003), we get a palindrome (51015).

Subtracting from 30012 its reverse (21003), we obtain a palindrome (9009).

It can be divided in two parts, 3001 and 2, that added together give a palindrome (3003).

The spelling of 30012 in words is "thirty thousand, twelve".