20411447723 has 2 divisors, whose sum is σ = 20411447724. Its totient is φ = 20411447722.

The previous prime is 20411447659. The next prime is 20411447741. The reversal of 20411447723 is 32774411402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20411447723 - 2⁶ = 20411447659 is a prime.

It is not a weakly prime, because it can be changed into another prime (20411441723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205723861 + 10205723862.

It is an arithmetic number, because the mean of its divisors is an integer number (10205723862).

Almost surely, 2^20411447723 is an apocalyptic number.

20411447723 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411447723 is an equidigital number, since it uses as much as digits as its factorization.

20411447723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 20411447723 in words is "twenty billion, four hundred eleven million, four hundred forty-seven thousand, seven hundred twenty-three".