31230116 has 12 divisors (see below), whose sum is σ = 55579440. Its totient is φ = 15350280.

The previous prime is 31230079. The next prime is 31230163. The reversal of 31230116 is 61103213.

It is a junction number, because it is equal to n+sod(n) for n = 31230094 and 31230103.

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 3 ways as a sum of consecutive naturals, for example, 65930 + ... + 66401.

It is an arithmetic number, because the mean of its divisors is an integer number (4631620).

Almost surely, 2^31230116 is an apocalyptic number.

It is an amenable number.

31230116 is a deficient number, since it is larger than the sum of its proper divisors (24349324).

31230116 is a wasteful number, since it uses less digits than its factorization.

31230116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132394 (or 132392 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 31230116 is about 5588.3911817266. The cubic root of 31230116 is about 314.9134422457.

Adding to 31230116 its reverse (61103213), we get a palindrome (92333329).

The spelling of 31230116 in words is "thirty-one million, two hundred thirty thousand, one hundred sixteen".