21003320112313 has 24 divisors (see below), whose sum is σ = 26398810980864. Its totient is φ = 16357244629440.

The previous prime is 21003320112301. The next prime is 21003320112361. The reversal of 21003320112313 is 31321102330012.

It is not a de Polignac number, because 21003320112313 - 2²⁵ = 21003286557881 is a prime.

It is a super-2 number, since 2×21003320112313² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21003320116313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5257156 + ... + 8345317.

It is an arithmetic number, because the mean of its divisors is an integer number (1099950457536).

Almost surely, 2^{21003320112313} is an apocalyptic number.

It is an amenable number.

21003320112313 is a deficient number, since it is larger than the sum of its proper divisors (5395490868551).

21003320112313 is a wasteful number, since it uses less digits than its factorization.

21003320112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13604325 (or 13604314 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21003320112313 its reverse (31321102330012), we get a palindrome (52324422442325).

The spelling of 21003320112313 in words is "twenty-one trillion, three billion, three hundred twenty million, one hundred twelve thousand, three hundred thirteen".