21310103130113 has 8 divisors (see below), whose sum is σ = 24394926716160. Its totient is φ = 18235410328800.

The previous prime is 21310103130109. The next prime is 21310103130163. The reversal of 21310103130113 is 31103130101312.

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

It is not a de Polignac number, because 21310103130113 - 2² = 21310103130109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21310103130163) 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, 2532691673 + ... + 2532700086.

It is an arithmetic number, because the mean of its divisors is an integer number (3049365839520).

Almost surely, 2^{21310103130113} is an apocalyptic number.

It is an amenable number.

21310103130113 is a deficient number, since it is larger than the sum of its proper divisors (3084823586047).

21310103130113 is an equidigital number, since it uses as much as digits as its factorization.

21310103130113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065392367.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 21310103130113 its reverse (31103130101312), we get a palindrome (52413233231425).

The spelling of 21310103130113 in words is "twenty-one trillion, three hundred ten billion, one hundred three million, one hundred thirty thousand, one hundred thirteen".