21310313014 has 12 divisors (see below), whose sum is σ = 32516450604. Its totient is φ = 10474557212.

The previous prime is 21310313009. The next prime is 21310313023. The reversal of 21310313014 is 41031301312.

It is a junction number, because it is equal to n+sod(n) for n = 21310312982 and 21310313000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1523512 + ... + 1537435.

It is an arithmetic number, because the mean of its divisors is an integer number (2709704217).

Almost surely, 2^21310313014 is an apocalyptic number.

21310313014 is a deficient number, since it is larger than the sum of its proper divisors (11206137590).

21310313014 is an equidigital number, since it uses as much as digits as its factorization.

21310313014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061067 (or 3061008 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21310313014 its reverse (41031301312), we get a palindrome (62341614326).

The spelling of 21310313014 in words is "twenty-one billion, three hundred ten million, three hundred thirteen thousand, fourteen".