20323203374767 has 2 divisors, whose sum is σ = 20323203374768. Its totient is φ = 20323203374766.

The previous prime is 20323203374753. The next prime is 20323203374783. The reversal of 20323203374767 is 76747330232302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323203374767 - 2¹⁹ = 20323202850479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20323203374767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323203374737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161601687383 + 10161601687384.

It is an arithmetic number, because the mean of its divisors is an integer number (10161601687384).

Almost surely, 2^{20323203374767} is an apocalyptic number.

20323203374767 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323203374767 is an equidigital number, since it uses as much as digits as its factorization.

20323203374767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 49.

The spelling of 20323203374767 in words is "twenty trillion, three hundred twenty-three billion, two hundred three million, three hundred seventy-four thousand, seven hundred sixty-seven".