31130132222 has 16 divisors (see below), whose sum is σ = 54008906112. Its totient is φ = 13180743960.

The previous prime is 31130132153. The next prime is 31130132237. The reversal of 31130132222 is 22223103113.

It is a junction number, because it is equal to n+sod(n) for n = 31130132194 and 31130132203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13393904 + ... + 13396227.

It is an arithmetic number, because the mean of its divisors is an integer number (3375556632).

Almost surely, 2^31130132222 is an apocalyptic number.

31130132222 is a deficient number, since it is larger than the sum of its proper divisors (22878773890).

31130132222 is a wasteful number, since it uses less digits than its factorization.

31130132222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26790223.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31130132222 its reverse (22223103113), we get a palindrome (53353235335).

The spelling of 31130132222 in words is "thirty-one billion, one hundred thirty million, one hundred thirty-two thousand, two hundred twenty-two".