21112003333123 has 8 divisors (see below), whose sum is σ = 21702363417792. Its totient is φ = 20522683532736.

The previous prime is 21112003333111. The next prime is 21112003333129. The reversal of 21112003333123 is 32133330021112.

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 21112003333123 - 2⁹ = 21112003332611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112003333129) 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, 260029915 + ... + 260111092.

It is an arithmetic number, because the mean of its divisors is an integer number (2712795427224).

Almost surely, 2^{21112003333123} is an apocalyptic number.

21112003333123 is a deficient number, since it is larger than the sum of its proper divisors (590360084669).

21112003333123 is a wasteful number, since it uses less digits than its factorization.

21112003333123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520142141.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21112003333123 its reverse (32133330021112), we get a palindrome (53245333354235).

The spelling of 21112003333123 in words is "twenty-one trillion, one hundred twelve billion, three million, three hundred thirty-three thousand, one hundred twenty-three".