30301312 has 16 divisors (see below), whose sum is σ = 60366150. Its totient is φ = 15150592.

The previous prime is 30301303. The next prime is 30301331. The reversal of 30301312 is 21310303.

It can be written as a sum of positive squares in only one way, i.e., 29333056 + 968256 = 5416^2 + 984^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 30301292 and 30301301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118237 + ... + 118492.

Almost surely, 2^30301312 is an apocalyptic number.

30301312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30301312 is a deficient number, since it is larger than the sum of its proper divisors (30064838).

30301312 is an equidigital number, since it uses as much as digits as its factorization.

30301312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236743 (or 236731 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 30301312 is about 5504.6627507959. The cubic root of 30301312 is about 311.7600609783.

Adding to 30301312 its reverse (21310303), we get a palindrome (51611615).

The spelling of 30301312 in words is "thirty million, three hundred one thousand, three hundred twelve".