421051773101 has 2 divisors, whose sum is σ = 421051773102. Its totient is φ = 421051773100.

The previous prime is 421051773017. The next prime is 421051773151. The reversal of 421051773101 is 101377150124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264946972900 + 156104800201 = 514730^2 + 395101^2 .

It is a cyclic number.

It is not a de Polignac number, because 421051773101 - 2²⁶ = 420984664237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421051773151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210525886550 + 210525886551.

It is an arithmetic number, because the mean of its divisors is an integer number (210525886551).

Almost surely, 2^421051773101 is an apocalyptic number.

It is an amenable number.

421051773101 is a deficient number, since it is larger than the sum of its proper divisors (1).

421051773101 is an equidigital number, since it uses as much as digits as its factorization.

421051773101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 32.

The spelling of 421051773101 in words is "four hundred twenty-one billion, fifty-one million, seven hundred seventy-three thousand, one hundred one".