30171012 has 24 divisors (see below), whose sum is σ = 74104800. Its totient is φ = 9527616.

The previous prime is 30170999. The next prime is 30171017. The reversal of 30171012 is 21017103.

It is a junction number, because it is equal to n+sod(n) for n = 30170982 and 30171000.

It is not an unprimeable number, because it can be changed into a prime (30171017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65937 + ... + 66392.

It is an arithmetic number, because the mean of its divisors is an integer number (3087700).

Almost surely, 2^30171012 is an apocalyptic number.

It is an amenable number.

30171012 is an abundant number, since it is smaller than the sum of its proper divisors (43933788).

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

30171012 is a wasteful number, since it uses less digits than its factorization.

30171012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132355 (or 132353 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 30171012 is about 5492.8145790660. The cubic root of 30171012 is about 311.3125478723.

Adding to 30171012 its reverse (21017103), we get a palindrome (51188115).

It can be divided in two parts, 3017101 and 2, that added together give a palindrome (3017103).

The spelling of 30171012 in words is "thirty million, one hundred seventy-one thousand, twelve".