30511012 has 12 divisors (see below), whose sum is σ = 61022080. Its totient is φ = 13076136.

The previous prime is 30511009. The next prime is 30511021. The reversal of 30511012 is 21011503.

30511012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 30510983 and 30511001.

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, 544812 + ... + 544867.

Almost surely, 2^30511012 is an apocalyptic number.

It is an amenable number.

30511012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30511012 is a wasteful number, since it uses less digits than its factorization.

30511012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089690 (or 1089688 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 30511012 is about 5523.6773982556. The cubic root of 30511012 is about 312.4775860191.

Adding to 30511012 its reverse (21011503), we get a palindrome (51522515).

The spelling of 30511012 in words is "thirty million, five hundred eleven thousand, twelve".