21316114 has 4 divisors (see below), whose sum is σ = 31974174. Its totient is φ = 10658056.

The previous prime is 21316109. The next prime is 21316133. The reversal of 21316114 is 41161312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18966025 + 2350089 = 4355^2 + 1533^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21316091 and 21316100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5329027 + ... + 5329030.

Almost surely, 2^21316114 is an apocalyptic number.

21316114 is a deficient number, since it is larger than the sum of its proper divisors (10658060).

21316114 is a wasteful number, since it uses less digits than its factorization.

21316114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10658059.

The product of its digits is 144, while the sum is 19.

The square root of 21316114 is about 4616.9377297079. The cubic root of 21316114 is about 277.2698695364.

Adding to 21316114 its reverse (41161312), we get a palindrome (62477426).

The spelling of 21316114 in words is "twenty-one million, three hundred sixteen thousand, one hundred fourteen".