20471303242 has 32 divisors (see below), whose sum is σ = 34025749632. Its totient is φ = 9175892544.

The previous prime is 20471303207. The next prime is 20471303243. The reversal of 20471303242 is 24230317402.

It is a self number, because there is not a number n which added to its sum of digits gives 20471303242.

It is not an unprimeable number, because it can be changed into a prime (20471303243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506763 + ... + 545665.

It is an arithmetic number, because the mean of its divisors is an integer number (1063304676).

Almost surely, 2^20471303242 is an apocalyptic number.

20471303242 is a deficient number, since it is larger than the sum of its proper divisors (13554446390).

20471303242 is a wasteful number, since it uses less digits than its factorization.

20471303242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39502.

The product of its (nonzero) digits is 8064, while the sum is 28.

The spelling of 20471303242 in words is "twenty billion, four hundred seventy-one million, three hundred three thousand, two hundred forty-two".