30112312 has 16 divisors (see below), whose sum is σ = 56625840. Its totient is φ = 15012096.

The previous prime is 30112309. The next prime is 30112319. The reversal of 30112312 is 21321103.

It is a junction number, because it is equal to n+sod(n) for n = 30112292 and 30112301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2508 + ... + 8155.

It is an arithmetic number, because the mean of its divisors is an integer number (3539115).

Almost surely, 2^30112312 is an apocalyptic number.

It is an amenable number.

30112312 is a deficient number, since it is larger than the sum of its proper divisors (26513528).

30112312 is a wasteful number, since it uses less digits than its factorization.

30112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11022 (or 11018 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 30112312 is about 5487.4686331678. The cubic root of 30112312 is about 311.1105227124.

Adding to 30112312 its reverse (21321103), we get a palindrome (51433415).

The spelling of 30112312 in words is "thirty million, one hundred twelve thousand, three hundred twelve".