30431112 has 32 divisors (see below), whose sum is σ = 76339680. Its totient is φ = 10108800.

The previous prime is 30431101. The next prime is 30431161. The reversal of 30431112 is 21113403.

It is a junction number, because it is equal to n+sod(n) for n = 30431091 and 30431100.

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 in 7 ways as a sum of consecutive naturals, for example, 5487 + ... + 9537.

It is an arithmetic number, because the mean of its divisors is an integer number (2385615).

Almost surely, 2^30431112 is an apocalyptic number.

It is an amenable number.

30431112 is an abundant number, since it is smaller than the sum of its proper divisors (45908568).

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

30431112 is a wasteful number, since it uses less digits than its factorization.

30431112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373 (or 4369 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 30431112 is about 5516.4401564777. The cubic root of 30431112 is about 312.2045831137.

Adding to 30431112 its reverse (21113403), we get a palindrome (51544515).

The spelling of 30431112 in words is "thirty million, four hundred thirty-one thousand, one hundred twelve".