31120112 has 10 divisors (see below), whose sum is σ = 60295248. Its totient is φ = 15560048.

The previous prime is 31120109. The next prime is 31120121. The reversal of 31120112 is 21102113.

It is a super-2 number, since 2×31120112² = 1936922741785088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31120093 and 31120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972488 + ... + 972519.

Almost surely, 2^31120112 is an apocalyptic number.

It is an amenable number.

31120112 is a deficient number, since it is larger than the sum of its proper divisors (29175136).

31120112 is a wasteful number, since it uses less digits than its factorization.

31120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945015 (or 1945009 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 31120112 is about 5578.5403108699. The cubic root of 31120112 is about 314.5432601246.

Adding to 31120112 its reverse (21102113), we get a palindrome (52222225).

The spelling of 31120112 in words is "thirty-one million, one hundred twenty thousand, one hundred twelve".