21310110321113 has 8 divisors (see below), whose sum is σ = 21312882654720. Its totient is φ = 21307338200160.

The previous prime is 21310110321083. The next prime is 21310110321173. The reversal of 21310110321113 is 31112301101312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21310110321113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21310110321173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296403056 + ... + 296474942.

It is an arithmetic number, because the mean of its divisors is an integer number (2664110331840).

Almost surely, 2^{21310110321113} is an apocalyptic number.

It is an amenable number.

21310110321113 is a deficient number, since it is larger than the sum of its proper divisors (2772333607).

21310110321113 is a wasteful number, since it uses less digits than its factorization.

21310110321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106327.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 21310110321113 its reverse (31112301101312), we get a palindrome (52422411422425).

The spelling of 21310110321113 in words is "twenty-one trillion, three hundred ten billion, one hundred ten million, three hundred twenty-one thousand, one hundred thirteen".