12420211189783 has 2 divisors, whose sum is σ = 12420211189784. Its totient is φ = 12420211189782.

The previous prime is 12420211189777. The next prime is 12420211189831. The reversal of 12420211189783 is 38798111202421.

12420211189783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12420211189783 - 2⁹ = 12420211189271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12420211109783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210105594891 + 6210105594892.

It is an arithmetic number, because the mean of its divisors is an integer number (6210105594892).

Almost surely, 2^{12420211189783} is an apocalyptic number.

12420211189783 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420211189783 is an equidigital number, since it uses as much as digits as its factorization.

12420211189783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 12420211189783 in words is "twelve trillion, four hundred twenty billion, two hundred eleven million, one hundred eighty-nine thousand, seven hundred eighty-three".