21344222103 has 8 divisors (see below), whose sum is σ = 29153084016. Its totient is φ = 13882420800.

The previous prime is 21344222089. The next prime is 21344222113. The reversal of 21344222103 is 30122244312.

It is a happy number.

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

It is not a de Polignac number, because 21344222103 - 2¹⁰ = 21344221079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21344222113) 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, 86765008 + ... + 86765253.

It is an arithmetic number, because the mean of its divisors is an integer number (3644135502).

Almost surely, 2^21344222103 is an apocalyptic number.

21344222103 is a deficient number, since it is larger than the sum of its proper divisors (7808861913).

21344222103 is a wasteful number, since it uses less digits than its factorization.

21344222103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173530305.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 21344222103 its reverse (30122244312), we get a palindrome (51466466415).

The spelling of 21344222103 in words is "twenty-one billion, three hundred forty-four million, two hundred twenty-two thousand, one hundred three".