423919516201 has 2 divisors, whose sum is σ = 423919516202. Its totient is φ = 423919516200.

The previous prime is 423919516187. The next prime is 423919516211. The reversal of 423919516201 is 102615919324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314609931801 + 109309584400 = 560901^2 + 330620^2 .

It is a cyclic number.

It is not a de Polignac number, because 423919516201 - 2⁵ = 423919516169 is a prime.

It is not a weakly prime, because it can be changed into another prime (423919516211) 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, 211959758100 + 211959758101.

It is an arithmetic number, because the mean of its divisors is an integer number (211959758101).

Almost surely, 2^423919516201 is an apocalyptic number.

It is an amenable number.

423919516201 is a deficient number, since it is larger than the sum of its proper divisors (1).

423919516201 is an equidigital number, since it uses as much as digits as its factorization.

423919516201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 423919516201 in words is "four hundred twenty-three billion, nine hundred nineteen million, five hundred sixteen thousand, two hundred one".