21010000323000 has 128 divisors (see below), whose sum is σ = 70593601216320. Its totient is φ = 5171692377600.

The previous prime is 21010000322933. The next prime is 21010000323001. The reversal of 21010000323000 is 32300001012.

It is a happy number.

It is a super-2 number, since 2×21010000323000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010000323001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269319979 + ... + 269397978.

Almost surely, 2^{21010000323000} is an apocalyptic number.

21010000323000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21010000323000 is an abundant number, since it is smaller than the sum of its proper divisors (49583600893320).

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

21010000323000 is a wasteful number, since it uses less digits than its factorization.

21010000323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538717994 (or 538717980 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 21010000323000 its reverse (32300001012), we get a palindrome (21042300324012).

The spelling of 21010000323000 in words is "twenty-one trillion, ten billion, three hundred twenty-three thousand".