21302011103 has 8 divisors (see below), whose sum is σ = 22062791280. Its totient is φ = 20567435448.

The previous prime is 21302011091. The next prime is 21302011121. The reversal of 21302011103 is 30111020312.

It is not a de Polignac number, because 21302011103 - 2²⁴ = 21285233887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302011123) 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, 412325 + ... + 461102.

It is an arithmetic number, because the mean of its divisors is an integer number (2757848910).

Almost surely, 2^21302011103 is an apocalyptic number.

21302011103 is a deficient number, since it is larger than the sum of its proper divisors (760780177).

21302011103 is an frugal number, since it uses more digits than its factorization.

21302011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873514 (or 873456 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21302011103 its reverse (30111020312), we get a palindrome (51413031415).

The spelling of 21302011103 in words is "twenty-one billion, three hundred two million, eleven thousand, one hundred three".