213100112 has 10 divisors (see below), whose sum is σ = 412881498. Its totient is φ = 106550048.

The previous prime is 213100079. The next prime is 213100157. The reversal of 213100112 is 211001312.

It can be written as a sum of positive squares in only one way, i.e., 182142016 + 30958096 = 13496^2 + 5564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213100093 and 213100102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6659363 + ... + 6659394.

Almost surely, 2^213100112 is an apocalyptic number.

It is an amenable number.

213100112 is a deficient number, since it is larger than the sum of its proper divisors (199781386).

213100112 is a wasteful number, since it uses less digits than its factorization.

213100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13318765 (or 13318759 counting only the distinct ones).

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

The square root of 213100112 is about 14597.9488970197. The cubic root of 213100112 is about 597.3028119813.

Adding to 213100112 its reverse (211001312), we get a palindrome (424101424).

The spelling of 213100112 in words is "two hundred thirteen million, one hundred thousand, one hundred twelve".