20316343 has 8 divisors (see below), whose sum is σ = 21833712. Its totient is φ = 18834816.

The previous prime is 20316341. The next prime is 20316347. The reversal of 20316343 is 34361302.

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

It is a cyclic number.

It is not a de Polignac number, because 20316343 - 2¹ = 20316341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20316341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7780 + ... + 10057.

It is an arithmetic number, because the mean of its divisors is an integer number (2729214).

Almost surely, 2^20316343 is an apocalyptic number.

20316343 is a deficient number, since it is larger than the sum of its proper divisors (1517369).

20316343 is a wasteful number, since it uses less digits than its factorization.

20316343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17921.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 20316343 is about 4507.3654167374. The cubic root of 20316343 is about 272.8654267483.

Adding to 20316343 its reverse (34361302), we get a palindrome (54677645).

The spelling of 20316343 in words is "twenty million, three hundred sixteen thousand, three hundred forty-three".