21320104110202 has 8 divisors (see below), whose sum is σ = 31981709189556. Its totient is φ = 10659534380352.

The previous prime is 21320104110167. The next prime is 21320104110299. The reversal of 21320104110202 is 20201140102312.

It can be written as a sum of positive squares in 2 ways, for example, as 15521779773361 + 5798324336841 = 3939769^2 + 2407971^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 21320104110202.

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, 258785893 + ... + 258868264.

Almost surely, 2^{21320104110202} is an apocalyptic number.

21320104110202 is a deficient number, since it is larger than the sum of its proper divisors (10661605079354).

21320104110202 is a wasteful number, since it uses less digits than its factorization.

21320104110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517674752.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21320104110202 its reverse (20201140102312), we get a palindrome (41521244212514).

The spelling of 21320104110202 in words is "twenty-one trillion, three hundred twenty billion, one hundred four million, one hundred ten thousand, two hundred two".