30803112 has 32 divisors (see below), whose sum is σ = 85564800. Its totient is φ = 10267632.

The previous prime is 30803111. The next prime is 30803147. The reversal of 30803112 is 21130803.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30803111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71088 + ... + 71519.

It is an arithmetic number, because the mean of its divisors is an integer number (2673900).

Almost surely, 2^30803112 is an apocalyptic number.

It is an amenable number.

30803112 is an abundant number, since it is smaller than the sum of its proper divisors (54761688).

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

30803112 is a wasteful number, since it uses less digits than its factorization.

30803112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142622 (or 142612 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 30803112 is about 5550.0551348613. The cubic root of 30803112 is about 313.4715983519.

Adding to 30803112 its reverse (21130803), we get a palindrome (51933915).

The spelling of 30803112 in words is "thirty million, eight hundred three thousand, one hundred twelve".