210213123312 has 20 divisors (see below), whose sum is σ = 543050568680. Its totient is φ = 70071041088.

The previous prime is 210213123311. The next prime is 210213123317. The reversal of 210213123312 is 213321312012.

It is a super-2 number, since 2×210213123312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210213123311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2189719987 + ... + 2189720082.

It is an arithmetic number, because the mean of its divisors is an integer number (27152528434).

Almost surely, 2^210213123312 is an apocalyptic number.

It is an amenable number.

210213123312 is an abundant number, since it is smaller than the sum of its proper divisors (332837445368).

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

210213123312 is a wasteful number, since it uses less digits than its factorization.

210213123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379440080 (or 4379440074 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 210213123312 its reverse (213321312012), we get a palindrome (423534435324).

The spelling of 210213123312 in words is "two hundred ten billion, two hundred thirteen million, one hundred twenty-three thousand, three hundred twelve".