21130330101 has 16 divisors (see below), whose sum is σ = 28363737024. Its totient is φ = 13992009984.

The previous prime is 21130330099. The next prime is 21130330127. The reversal of 21130330101 is 10103303112.

It is not a de Polignac number, because 21130330101 - 2¹ = 21130330099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130330301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856795 + ... + 881111.

It is an arithmetic number, because the mean of its divisors is an integer number (1772733564).

Almost surely, 2^21130330101 is an apocalyptic number.

It is an amenable number.

21130330101 is a deficient number, since it is larger than the sum of its proper divisors (7233406923).

21130330101 is a wasteful number, since it uses less digits than its factorization.

21130330101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26260.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21130330101 its reverse (10103303112), we get a palindrome (31233633213).

The spelling of 21130330101 in words is "twenty-one billion, one hundred thirty million, three hundred thirty thousand, one hundred one".