213223112312 has 48 divisors (see below), whose sum is σ = 469581006960. Its totient is φ = 90494119296.

The previous prime is 213223112309. The next prime is 213223112321. The reversal of 213223112312 is 213211322312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2600093 + ... + 2680844.

It is an arithmetic number, because the mean of its divisors is an integer number (9782937645).

Almost surely, 2^213223112312 is an apocalyptic number.

It is an amenable number.

213223112312 is an abundant number, since it is smaller than the sum of its proper divisors (256357894648).

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

213223112312 is a wasteful number, since it uses less digits than its factorization.

213223112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281060 (or 5281049 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 213223112312 its reverse (213211322312), we get a palindrome (426434434624).

The spelling of 213223112312 in words is "two hundred thirteen billion, two hundred twenty-three million, one hundred twelve thousand, three hundred twelve".