20412304443 has 24 divisors (see below), whose sum is σ = 30530575920. Its totient is φ = 13126276800.

The previous prime is 20412304441. The next prime is 20412304453. The reversal of 20412304443 is 34440321402.

It is a happy number.

20412304443 is a `hidden beast` number, since 204 + 12 + 3 + 0 + 4 + 443 = 666.

It is not a de Polignac number, because 20412304443 - 2¹ = 20412304441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20412304441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237105 + ... + 311517.

It is an arithmetic number, because the mean of its divisors is an integer number (1272107330).

Almost surely, 2^20412304443 is an apocalyptic number.

20412304443 is a deficient number, since it is larger than the sum of its proper divisors (10118271477).

20412304443 is a wasteful number, since it uses less digits than its factorization.

20412304443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75499 (or 75496 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20412304443 its reverse (34440321402), we get a palindrome (54852625845).

The spelling of 20412304443 in words is "twenty billion, four hundred twelve million, three hundred four thousand, four hundred forty-three".