213312112 has 40 divisors (see below), whose sum is σ = 446221440. Its totient is φ = 98200320.

The previous prime is 213312103. The next prime is 213312119. The reversal of 213312112 is 211213312.

213312112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213312119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98562 + ... + 100702.

It is an arithmetic number, because the mean of its divisors is an integer number (11155536).

Almost surely, 2^213312112 is an apocalyptic number.

It is an amenable number.

213312112 is an abundant number, since it is smaller than the sum of its proper divisors (232909328).

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

213312112 is a wasteful number, since it uses less digits than its factorization.

213312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641 (or 2635 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 213312112 is about 14605.2083860519. The cubic root of 213312112 is about 597.5008194290.

Adding to 213312112 its reverse (211213312), we get a palindrome (424525424).

It can be divided in two parts, 21 and 3312112, that added together give a palindrome (3312133).

The spelling of 213312112 in words is "two hundred thirteen million, three hundred twelve thousand, one hundred twelve".