20473502443 has 2 divisors, whose sum is σ = 20473502444. Its totient is φ = 20473502442.

The previous prime is 20473502369. The next prime is 20473502477. The reversal of 20473502443 is 34420537402.

It is an a-pointer prime, because the next prime (20473502477) can be obtained adding 20473502443 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20473502443 - 2²¹ = 20471405291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20473502399 and 20473502408.

It is not a weakly prime, because it can be changed into another prime (20473512443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10236751221 + 10236751222.

It is an arithmetic number, because the mean of its divisors is an integer number (10236751222).

Almost surely, 2^20473502443 is an apocalyptic number.

20473502443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20473502443 is an equidigital number, since it uses as much as digits as its factorization.

20473502443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 34.

The spelling of 20473502443 in words is "twenty billion, four hundred seventy-three million, five hundred two thousand, four hundred forty-three".