21103314 has 16 divisors (see below), whose sum is σ = 42530400. Its totient is φ = 6980480.

The previous prime is 21103309. The next prime is 21103321. The reversal of 21103314 is 41330112.

It is a junction number, because it is equal to n+sod(n) for n = 21103293 and 21103302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12639 + ... + 14210.

It is an arithmetic number, because the mean of its divisors is an integer number (2658150).

Almost surely, 2^21103314 is an apocalyptic number.

21103314 is an abundant number, since it is smaller than the sum of its proper divisors (21427086).

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

21103314 is a wasteful number, since it uses less digits than its factorization.

21103314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26985.

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

The square root of 21103314 is about 4593.8343461644. The cubic root of 21103314 is about 276.3441149948.

Adding to 21103314 its reverse (41330112), we get a palindrome (62433426).

The spelling of 21103314 in words is "twenty-one million, one hundred three thousand, three hundred fourteen".