21010101000300 has 72 divisors (see below), whose sum is σ = 67543583965200. Its totient is φ = 5602693599360.

The previous prime is 21010101000289. The next prime is 21010101000307. The reversal of 21010101000300 is 300010101012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (21010101000307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3890756745 + ... + 3890762144.

It is an arithmetic number, because the mean of its divisors is an integer number (938105332850).

Almost surely, 2^{21010101000300} is an apocalyptic number.

21010101000300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21010101000300 is an abundant number, since it is smaller than the sum of its proper divisors (46533482964900).

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

21010101000300 is a wasteful number, since it uses less digits than its factorization.

21010101000300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781518912 (or 7781518899 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 21010101000300 its reverse (300010101012), we get a palindrome (21310111101312).

The spelling of 21010101000300 in words is "twenty-one trillion, ten billion, one hundred one million, three hundred", and thus it is an aban number.