421346543053 has 2 divisors, whose sum is σ = 421346543054. Its totient is φ = 421346543052.

The previous prime is 421346542987. The next prime is 421346543077. The reversal of 421346543053 is 350345643124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246633410884 + 174713132169 = 496622^2 + 417987^2 .

It is a cyclic number.

It is not a de Polignac number, because 421346543053 - 2²¹ = 421344445901 is a prime.

It is a super-3 number, since 3×421346543053³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421346542997 and 421346543015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421346543353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210673271526 + 210673271527.

It is an arithmetic number, because the mean of its divisors is an integer number (210673271527).

Almost surely, 2^421346543053 is an apocalyptic number.

It is an amenable number.

421346543053 is a deficient number, since it is larger than the sum of its proper divisors (1).

421346543053 is an equidigital number, since it uses as much as digits as its factorization.

421346543053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 421346543053 in words is "four hundred twenty-one billion, three hundred forty-six million, five hundred forty-three thousand, fifty-three".