21000310320102 has 8 divisors (see below), whose sum is σ = 42000620640216. Its totient is φ = 7000103440032.

The previous prime is 21000310319993. The next prime is 21000310320137. The reversal of 21000310320102 is 20102301300012.

It is a sphenic number, since it is the product of 3 distinct primes.

21000310320102 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750025860003 + ... + 1750025860014.

It is an arithmetic number, because the mean of its divisors is an integer number (5250077580027).

Almost surely, 2^{21000310320102} is an apocalyptic number.

21000310320102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21000310320102 is a wasteful number, since it uses less digits than its factorization.

21000310320102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500051720022.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21000310320102 its reverse (20102301300012), we get a palindrome (41102611620114).

The spelling of 21000310320102 in words is "twenty-one trillion, three hundred ten million, three hundred twenty thousand, one hundred two".