21301234101 has 24 divisors (see below), whose sum is σ = 35559051840. Its totient is φ = 12035365056.

The previous prime is 21301234063. The next prime is 21301234111. The reversal of 21301234101 is 10143210312.

21301234101 is a `hidden beast` number, since 2 + 130 + 123 + 410 + 1 = 666.

It is not a de Polignac number, because 21301234101 - 2⁷ = 21301233973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301234111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1893915 + ... + 1905128.

It is an arithmetic number, because the mean of its divisors is an integer number (1481627160).

Almost surely, 2^21301234101 is an apocalyptic number.

21301234101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21301234101 is a deficient number, since it is larger than the sum of its proper divisors (14257817739).

21301234101 is a wasteful number, since it uses less digits than its factorization.

21301234101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799145 (or 3799142 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21301234101 its reverse (10143210312), we get a palindrome (31444444413).

The spelling of 21301234101 in words is "twenty-one billion, three hundred one million, two hundred thirty-four thousand, one hundred one".