213102112 has 12 divisors (see below), whose sum is σ = 419544846. Its totient is φ = 106551040.

The previous prime is 213102079. The next prime is 213102139. The reversal of 213102112 is 211201312.

It can be written as a sum of positive squares in only one way, i.e., 212110096 + 992016 = 14564^2 + 996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213102092 and 213102101.

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, 3329689 + ... + 3329752.

Almost surely, 2^213102112 is an apocalyptic number.

It is an amenable number.

213102112 is a deficient number, since it is larger than the sum of its proper divisors (206442734).

213102112 is an equidigital number, since it uses as much as digits as its factorization.

213102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6659451 (or 6659443 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 213102112 is about 14598.0173996334. The cubic root of 213102112 is about 597.3046805895.

Adding to 213102112 its reverse (211201312), we get a palindrome (424303424).

The spelling of 213102112 in words is "two hundred thirteen million, one hundred two thousand, one hundred twelve".