20213120011230 has 64 divisors (see below), whose sum is σ = 53937854337600. Its totient is φ = 5386545239040.

The previous prime is 20213120011171. The next prime is 20213120011247. The reversal of 20213120011230 is 3211002131202.

20213120011230 is a `hidden beast` number, since 20 + 213 + 1 + 200 + 1 + 1 + 230 = 666.

It is a super-2 number, since 2×20213120011230² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 24736791 + ... + 25540850.

It is an arithmetic number, because the mean of its divisors is an integer number (842778974025).

Almost surely, 2^{20213120011230} is an apocalyptic number.

20213120011230 is an abundant number, since it is smaller than the sum of its proper divisors (33724734326370).

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

20213120011230 is a wasteful number, since it uses less digits than its factorization.

20213120011230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50279146 (or 50279140 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20213120011230 its reverse (3211002131202), we get a palindrome (23424122142432).

The spelling of 20213120011230 in words is "twenty trillion, two hundred thirteen billion, one hundred twenty million, eleven thousand, two hundred thirty".