21102102201313 has 32 divisors (see below), whose sum is σ = 26447258799360. Its totient is φ = 16436523591936.

The previous prime is 21102102201287. The next prime is 21102102201317. The reversal of 21102102201313 is 31310220120112.

It is not a de Polignac number, because 21102102201313 - 2⁵ = 21102102201281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21102102201317) 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, 733131 + ... + 6537712.

It is an arithmetic number, because the mean of its divisors is an integer number (826476837480).

Almost surely, 2^{21102102201313} is an apocalyptic number.

It is an amenable number.

21102102201313 is a deficient number, since it is larger than the sum of its proper divisors (5345156598047).

21102102201313 is an frugal number, since it uses more digits than its factorization.

21102102201313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270954 (or 7270896 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21102102201313 its reverse (31310220120112), we get a palindrome (52412322321425).

The spelling of 21102102201313 in words is "twenty-one trillion, one hundred two billion, one hundred two million, two hundred one thousand, three hundred thirteen".