20213133223132 has 24 divisors (see below), whose sum is σ = 35653542557696. Its totient is φ = 10026415849968.

The previous prime is 20213133223121. The next prime is 20213133223163. The reversal of 20213133223132 is 23132233131202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20213133223132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7857883 + ... + 10108045.

Almost surely, 2^{20213133223132} is an apocalyptic number.

It is an amenable number.

20213133223132 is a deficient number, since it is larger than the sum of its proper divisors (15440409334564).

20213133223132 is a wasteful number, since it uses less digits than its factorization.

20213133223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267977 (or 2267975 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 20213133223132 its reverse (23132233131202), we get a palindrome (43345366354334).

The spelling of 20213133223132 in words is "twenty trillion, two hundred thirteen billion, one hundred thirty-three million, two hundred twenty-three thousand, one hundred thirty-two".