21011110212323 has 8 divisors (see below), whose sum is σ = 26195669875200. Its totient is φ = 16372293671880.

The previous prime is 21011110212317. The next prime is 21011110212329. The reversal of 21011110212323 is 32321201111012.

It is an interprime number because it is at equal distance from previous prime (21011110212317) and next prime (21011110212329).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21011110212323 - 2³² = 21006815245027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21011110212295 and 21011110212304.

It is not an unprimeable number, because it can be changed into a prime (21011110212329) 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, 136435780523 + ... + 136435780676.

It is an arithmetic number, because the mean of its divisors is an integer number (3274458734400).

Almost surely, 2^{21011110212323} is an apocalyptic number.

21011110212323 is a deficient number, since it is larger than the sum of its proper divisors (5184559662877).

21011110212323 is a wasteful number, since it uses less digits than its factorization.

21011110212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272871561217.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21011110212323 its reverse (32321201111012), we get a palindrome (53332311323335).

The spelling of 21011110212323 in words is "twenty-one trillion, eleven billion, one hundred ten million, two hundred twelve thousand, three hundred twenty-three".