20211233112320 has 72 divisors (see below), whose sum is σ = 48956177110680. Its totient is φ = 7993656197120.

The previous prime is 20211233112289. The next prime is 20211233112437. The reversal of 20211233112320 is 2321133211202.

It can be written as a sum of positive squares in 4 ways, for example, as 3500012372224 + 16711220740096 = 1870832^2 + 4087936^2 .

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, 88594091 + ... + 88821930.

It is an arithmetic number, because the mean of its divisors is an integer number (679946904315).

Almost surely, 2^{20211233112320} is an apocalyptic number.

20211233112320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211233112320 is an abundant number, since it is smaller than the sum of its proper divisors (28744943998360).

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

20211233112320 is an equidigital number, since it uses as much as digits as its factorization.

20211233112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177416131 (or 177416117 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20211233112320 its reverse (2321133211202), we get a palindrome (22532366323522).

The spelling of 20211233112320 in words is "twenty trillion, two hundred eleven billion, two hundred thirty-three million, one hundred twelve thousand, three hundred twenty".