20812364014423 has 2 divisors, whose sum is σ = 20812364014424. Its totient is φ = 20812364014422.

The previous prime is 20812364014363. The next prime is 20812364014499. The reversal of 20812364014423 is 32441046321802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20812364014423 - 2²¹ = 20812361917271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20812364714423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10406182007211 + 10406182007212.

It is an arithmetic number, because the mean of its divisors is an integer number (10406182007212).

Almost surely, 2^{20812364014423} is an apocalyptic number.

20812364014423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20812364014423 is an equidigital number, since it uses as much as digits as its factorization.

20812364014423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 20812364014423 in words is "twenty trillion, eight hundred twelve billion, three hundred sixty-four million, fourteen thousand, four hundred twenty-three".