213233210231112 has 128 divisors (see below), whose sum is σ = 608766064617600. Its totient is φ = 69106344217344.

The previous prime is 213233210231089. The next prime is 213233210231143. The reversal of 213233210231112 is 211132012332312.

213233210231112 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 332 + 1 + 0 + 2 + 311 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1256763 + ... + 20689269.

It is an arithmetic number, because the mean of its divisors is an integer number (4755984879825).

Almost surely, 2^{213233210231112} 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 213233210231112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304383032308800).

213233210231112 is an abundant number, since it is smaller than the sum of its proper divisors (395532854386488).

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

213233210231112 is a wasteful number, since it uses less digits than its factorization.

213233210231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19433932 (or 19433922 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 213233210231112 its reverse (211132012332312), we get a palindrome (424365222563424).

The spelling of 213233210231112 in words is "two hundred thirteen trillion, two hundred thirty-three billion, two hundred ten million, two hundred thirty-one thousand, one hundred twelve".