21314043 has 32 divisors (see below), whose sum is σ = 33062400. Its totient is φ = 13553568.

The previous prime is 21314011. The next prime is 21314053. The reversal of 21314043 is 34041312.

It is not a de Polignac number, because 21314043 - 2⁵ = 21314011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21314053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127546 + ... + 127712.

It is an arithmetic number, because the mean of its divisors is an integer number (1033200).

Almost surely, 2^21314043 is an apocalyptic number.

21314043 is a deficient number, since it is larger than the sum of its proper divisors (11748357).

21314043 is a wasteful number, since it uses less digits than its factorization.

21314043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 21314043 is about 4616.7134413996. The cubic root of 21314043 is about 277.2608897180.

Adding to 21314043 its reverse (34041312), we get a palindrome (55355355).

The spelling of 21314043 in words is "twenty-one million, three hundred fourteen thousand, forty-three".