20313043 has 8 divisors (see below), whose sum is σ = 20568240. Its totient is φ = 20059680.

The previous prime is 20313001. The next prime is 20313047. The reversal of 20313043 is 34031302.

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 20313043 - 2⁹ = 20312531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313047) 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, 43833 + ... + 44293.

It is an arithmetic number, because the mean of its divisors is an integer number (2571030).

Almost surely, 2^20313043 is an apocalyptic number.

20313043 is a deficient number, since it is larger than the sum of its proper divisors (255197).

20313043 is a wasteful number, since it uses less digits than its factorization.

20313043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20313043 is about 4506.9993343687. Note that the first 3 decimals coincide. The cubic root of 20313043 is about 272.8506520311.

Adding to 20313043 its reverse (34031302), we get a palindrome (54344345).

The spelling of 20313043 in words is "twenty million, three hundred thirteen thousand, forty-three".