21310314 has 8 divisors (see below), whose sum is σ = 42620640. Its totient is φ = 7103436.

The previous prime is 21310309. The next prime is 21310319. The reversal of 21310314 is 41301312.

It is an interprime number because it is at equal distance from previous prime (21310309) and next prime (21310319).

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

21310314 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21310293 and 21310302.

It is not an unprimeable number, because it can be changed into a prime (21310319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1775854 + ... + 1775865.

It is an arithmetic number, because the mean of its divisors is an integer number (5327580).

Almost surely, 2^21310314 is an apocalyptic number.

21310314 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21310314 is a wasteful number, since it uses less digits than its factorization.

21310314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551724.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 21310314 is about 4616.3095650097. The cubic root of 21310314 is about 277.2447193750.

Adding to 21310314 its reverse (41301312), we get a palindrome (62611626).

The spelling of 21310314 in words is "twenty-one million, three hundred ten thousand, three hundred fourteen".