30231012 has 48 divisors (see below), whose sum is σ = 80890880. Its totient is φ = 8608032.

The previous prime is 30230999. The next prime is 30231013. The reversal of 30231012 is 21013203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (30231013) 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 15 ways as a sum of consecutive naturals, for example, 40539 + ... + 41277.

Almost surely, 2^30231012 is an apocalyptic number.

It is an amenable number.

30231012 is an abundant number, since it is smaller than the sum of its proper divisors (50659868).

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

30231012 is a wasteful number, since it uses less digits than its factorization.

30231012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30231012 is about 5498.2735472146. The cubic root of 30231012 is about 311.5187765598.

Adding to 30231012 its reverse (21013203), we get a palindrome (51244215).

The spelling of 30231012 in words is "thirty million, two hundred thirty-one thousand, twelve".