21132314 has 16 divisors (see below), whose sum is σ = 36298368. Its totient is φ = 9038832.

The previous prime is 21132311. The next prime is 21132317. The reversal of 21132314 is 41323112.

It is an interprime number because it is at equal distance from previous prime (21132311) and next prime (21132317).

It is a junction number, because it is equal to n+sod(n) for n = 21132292 and 21132301.

It is not an unprimeable number, because it can be changed into a prime (21132311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7892 + ... + 10224.

It is an arithmetic number, because the mean of its divisors is an integer number (2268648).

Almost surely, 2^21132314 is an apocalyptic number.

21132314 is a deficient number, since it is larger than the sum of its proper divisors (15166054).

21132314 is a wasteful number, since it uses less digits than its factorization.

21132314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989.

The product of its digits is 144, while the sum is 17.

The square root of 21132314 is about 4596.9896671626. The cubic root of 21132314 is about 276.4706403234.

Adding to 21132314 its reverse (41323112), we get a palindrome (62455426).

The spelling of 21132314 in words is "twenty-one million, one hundred thirty-two thousand, three hundred fourteen".