21233120321103 has 8 divisors (see below), whose sum is σ = 28311961760688. Its totient is φ = 14154846214464.

The previous prime is 21233120321099. The next prime is 21233120321183. The reversal of 21233120321103 is 30112302133212.

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

It is not a de Polignac number, because 21233120321103 - 2² = 21233120321099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233120321183) 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, 141745900 + ... + 141895617.

It is an arithmetic number, because the mean of its divisors is an integer number (3538995220086).

Almost surely, 2^{21233120321103} is an apocalyptic number.

21233120321103 is a deficient number, since it is larger than the sum of its proper divisors (7078841439585).

21233120321103 is a wasteful number, since it uses less digits than its factorization.

21233120321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283666473.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21233120321103 its reverse (30112302133212), we get a palindrome (51345422454315).

The spelling of 21233120321103 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred twenty million, three hundred twenty-one thousand, one hundred three".