21331230103 has 8 divisors (see below), whose sum is σ = 21460320000. Its totient is φ = 21202321920.

The previous prime is 21331230079. The next prime is 21331230113. The reversal of 21331230103 is 30103213312.

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 21331230103 - 2⁵ = 21331230071 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 (21331230113) 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, 193851 + ... + 283267.

It is an arithmetic number, because the mean of its divisors is an integer number (2682540000).

Almost surely, 2^21331230103 is an apocalyptic number.

21331230103 is a deficient number, since it is larger than the sum of its proper divisors (129089897).

21331230103 is a wasteful number, since it uses less digits than its factorization.

21331230103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90857.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21331230103 its reverse (30103213312), we get a palindrome (51434443415).

The spelling of 21331230103 in words is "twenty-one billion, three hundred thirty-one million, two hundred thirty thousand, one hundred three".