30000012 has 48 divisors (see below), whose sum is σ = 84215040. Its totient is φ = 8119872.

The previous prime is 30000001. The next prime is 30000023. The reversal of 30000012 is 21000003.

It is an interprime number because it is at equal distance from previous prime (30000001) and next prime (30000023).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7803 + ... + 10994.

It is an arithmetic number, because the mean of its divisors is an integer number (1754480).

Almost surely, 2^30000012 is an apocalyptic number.

It is an amenable number.

30000012 is an abundant number, since it is smaller than the sum of its proper divisors (54215028).

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

30000012 is a wasteful number, since it uses less digits than its factorization.

30000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18830 (or 18828 counting only the distinct ones).

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

The square root of 30000012 is about 5477.2266704967. The cubic root of 30000012 is about 310.7232920251.

Adding to 30000012 its reverse (21000003), we get a palindrome (51000015).

Subtracting from 30000012 its reverse (21000003), we obtain a palindrome (9000009).

It can be divided in two parts, 3000001 and 2, that added together give a palindrome (3000003).

The spelling of 30000012 in words is "thirty million, twelve", and thus it is an aban number and an uban number.