20450337043 has 2 divisors, whose sum is σ = 20450337044. Its totient is φ = 20450337042.

The previous prime is 20450337041. The next prime is 20450337077. The reversal of 20450337043 is 34073305402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20450337043 - 2¹ = 20450337041 is a prime.

Together with 20450337041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20450336996 and 20450337014.

It is not a weakly prime, because it can be changed into another prime (20450337041) 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, 10225168521 + 10225168522.

It is an arithmetic number, because the mean of its divisors is an integer number (10225168522).

Almost surely, 2^20450337043 is an apocalyptic number.

20450337043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20450337043 is an equidigital number, since it uses as much as digits as its factorization.

20450337043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 31.

The spelling of 20450337043 in words is "twenty billion, four hundred fifty million, three hundred thirty-seven thousand, forty-three".