21102111331303 has 8 divisors (see below), whose sum is σ = 22019736053376. Its totient is φ = 20184498411000.

The previous prime is 21102111331283. The next prime is 21102111331331. The reversal of 21102111331303 is 30313311120112.

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 21102111331303 - 2⁵ = 21102111331271 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 (21102111334303) 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, 805128 + ... + 6546178.

It is an arithmetic number, because the mean of its divisors is an integer number (2752467006672).

Almost surely, 2^{21102111331303} is an apocalyptic number.

21102111331303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21102111331303 is a deficient number, since it is larger than the sum of its proper divisors (917624722073).

21102111331303 is a wasteful number, since it uses less digits than its factorization.

21102111331303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900885.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 21102111331303 its reverse (30313311120112), we get a palindrome (51415422451415).

The spelling of 21102111331303 in words is "twenty-one trillion, one hundred two billion, one hundred eleven million, three hundred thirty-one thousand, three hundred three".