20211123210330 has 64 divisors (see below), whose sum is σ = 52239553285248. Its totient is φ = 4974895875840.

The previous prime is 20211123210253. The next prime is 20211123210331. The reversal of 20211123210330 is 3301232111202.

It is a junction number, because it is equal to n+sod(n) for n = 20211123210297 and 20211123210306.

It is not an unprimeable number, because it can be changed into a prime (20211123210331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12473557 + ... + 14000423.

It is an arithmetic number, because the mean of its divisors is an integer number (816243020082).

Almost surely, 2^{20211123210330} is an apocalyptic number.

20211123210330 is an abundant number, since it is smaller than the sum of its proper divisors (32028430074918).

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

20211123210330 is a wasteful number, since it uses less digits than its factorization.

20211123210330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560831.

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

Adding to 20211123210330 its reverse (3301232111202), we get a palindrome (23512355321532).

The spelling of 20211123210330 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-three million, two hundred ten thousand, three hundred thirty".