213230112 has 96 divisors (see below), whose sum is σ = 579845952. Its totient is φ = 68557824.

The previous prime is 213230107. The next prime is 213230119. The reversal of 213230112 is 211032312.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 213230091 and 213230100.

It is not an unprimeable number, because it can be changed into a prime (213230119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614323 + ... + 614669.

It is an arithmetic number, because the mean of its divisors is an integer number (6040062).

Almost surely, 2^213230112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213230112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289922976).

213230112 is an abundant number, since it is smaller than the sum of its proper divisors (366615840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213230112 is a wasteful number, since it uses less digits than its factorization.

213230112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 213230112 is about 14602.4008984824. The cubic root of 213230112 is about 597.4242472078.

Adding to 213230112 its reverse (211032312), we get a palindrome (424262424).

The spelling of 213230112 in words is "two hundred thirteen million, two hundred thirty thousand, one hundred twelve".