21230231100001 has 96 divisors (see below), whose sum is σ = 28251463219200. Its totient is φ = 15745956145920.

The previous prime is 21230231099999. The next prime is 21230231100019. The reversal of 21230231100001 is 10000113203212.

It is not a de Polignac number, because 21230231100001 - 2¹ = 21230231099999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21230231100301) 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 95 ways as a sum of consecutive naturals, for example, 2401877140 + ... + 2401885978.

It is an arithmetic number, because the mean of its divisors is an integer number (294286075200).

Almost surely, 2^{21230231100001} is an apocalyptic number.

It is an amenable number.

21230231100001 is a deficient number, since it is larger than the sum of its proper divisors (7021232119199).

21230231100001 is a wasteful number, since it uses less digits than its factorization.

21230231100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9819 (or 9812 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21230231100001 its reverse (10000113203212), we get a palindrome (31230344303213).

The spelling of 21230231100001 in words is "twenty-one trillion, two hundred thirty billion, two hundred thirty-one million, one hundred thousand, one".