213123032001012 has 96 divisors (see below), whose sum is σ = 616436201767680. Its totient is φ = 55912580628480.

The previous prime is 213123032001007. The next prime is 213123032001023. The reversal of 213123032001012 is 210100230321312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 213123032001012.

It is a congruent number.

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, 1820012437 + ... + 1820129532.

It is an arithmetic number, because the mean of its divisors is an integer number (6421210435080).

Almost surely, 2^{213123032001012} is an apocalyptic number.

It is an amenable number.

213123032001012 is an abundant number, since it is smaller than the sum of its proper divisors (403313169766668).

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

213123032001012 is a wasteful number, since it uses less digits than its factorization.

213123032001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640142041 (or 3640142039 counting only the distinct ones).

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

Adding to 213123032001012 its reverse (210100230321312), we get a palindrome (423223262322324).

The spelling of 213123032001012 in words is "two hundred thirteen trillion, one hundred twenty-three billion, thirty-two million, one thousand, twelve".