21230101330100 has 36 divisors (see below), whose sum is σ = 49613113726764. Its totient is φ = 7838806644480.

The previous prime is 21230101330099. The next prime is 21230101330103. The reversal of 21230101330100 is 103310103212.

It can be written as a sum of positive squares in 6 ways, for example, as 8745765240976 + 12484336089124 = 2957324^2 + 3533318^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230101330103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8165422289 + ... + 8165424888.

Almost surely, 2^{21230101330100} is an apocalyptic number.

21230101330100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21230101330100 is an abundant number, since it is smaller than the sum of its proper divisors (28383012396664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21230101330100 is a wasteful number, since it uses less digits than its factorization.

21230101330100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16330847204 (or 16330847197 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21230101330100 its reverse (103310103212), we get a palindrome (21333411433312).

The spelling of 21230101330100 in words is "twenty-one trillion, two hundred thirty billion, one hundred one million, three hundred thirty thousand, one hundred".