31300112 has 10 divisors (see below), whose sum is σ = 60643998. Its totient is φ = 15650048.

The previous prime is 31300099. The next prime is 31300123. The reversal of 31300112 is 21100313.

It can be written as a sum of positive squares in only one way, i.e., 24245776 + 7054336 = 4924^2 + 2656^2 .

It is a super-2 number, since 2×31300112² = 1959394022425088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31300093 and 31300102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978113 + ... + 978144.

Almost surely, 2^31300112 is an apocalyptic number.

It is an amenable number.

31300112 is a deficient number, since it is larger than the sum of its proper divisors (29343886).

31300112 is a wasteful number, since it uses less digits than its factorization.

31300112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956265 (or 1956259 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 31300112 is about 5594.6503018509. The cubic root of 31300112 is about 315.1485383273.

Adding to 31300112 its reverse (21100313), we get a palindrome (52400425).

The spelling of 31300112 in words is "thirty-one million, three hundred thousand, one hundred twelve".