20343443204 has 12 divisors (see below), whose sum is σ = 40686886464. Its totient is φ = 8718618504.

The previous prime is 20343443191. The next prime is 20343443207. The reversal of 20343443204 is 40234434302.

20343443204 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20343443207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363275744 + ... + 363275799.

It is an arithmetic number, because the mean of its divisors is an integer number (3390573872).

Almost surely, 2^20343443204 is an apocalyptic number.

It is an amenable number.

20343443204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20343443204 is a wasteful number, since it uses less digits than its factorization.

20343443204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726551554 (or 726551552 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 20343443204 its reverse (40234434302), we get a palindrome (60577877506).

The spelling of 20343443204 in words is "twenty billion, three hundred forty-three million, four hundred forty-three thousand, two hundred four".