20323650443 has 2 divisors, whose sum is σ = 20323650444. Its totient is φ = 20323650442.

The previous prime is 20323650407. The next prime is 20323650461. The reversal of 20323650443 is 34405632302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20323650443 - 2³⁴ = 3143781259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20323950443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161825221 + 10161825222.

It is an arithmetic number, because the mean of its divisors is an integer number (10161825222).

Almost surely, 2^20323650443 is an apocalyptic number.

20323650443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323650443 is an equidigital number, since it uses as much as digits as its factorization.

20323650443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 32.

The spelling of 20323650443 in words is "twenty billion, three hundred twenty-three million, six hundred fifty thousand, four hundred forty-three".