212021111323 has 8 divisors (see below), whose sum is σ = 242655510240.
Its totient is φ = 181473129600.
The previous prime is 212021111279. The next prime is 212021111329. The reversal of 212021111323 is 323111120212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 212021111323 - 29 = 212021110811 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 212021111323.
It is not an unprimeable number, because it can be changed into a prime (212021111329) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21599038 + ... + 21608851.
It is an arithmetic number, because the mean of its divisors is an integer number (30331938780).
Almost surely, 2212021111323 is an apocalyptic number.
212021111323 is a deficient number, since it is larger than the sum of its proper divisors (30634398917).
212021111323 is an equidigital number, since it uses as much as digits as its factorization.
212021111323 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43208597.
The product of its (nonzero) digits is 144, while the sum is 19.
Adding to 212021111323 its reverse (323111120212), we get a palindrome (535132231535).
The spelling of 212021111323 in words is "two hundred twelve billion, twenty-one million, one hundred eleven thousand, three hundred twenty-three".