420324133081 has 2 divisors, whose sum is σ = 420324133082. Its totient is φ = 420324133080.

The previous prime is 420324133039. The next prime is 420324133129. The reversal of 420324133081 is 180331423024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392972265625 + 27351867456 = 626875^2 + 165384^2 .

It is a cyclic number.

It is not a de Polignac number, because 420324133081 - 2¹¹ = 420324131033 is a prime.

It is a super-2 number, since 2×420324133081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (420324130081) 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, 210162066540 + 210162066541.

It is an arithmetic number, because the mean of its divisors is an integer number (210162066541).

Almost surely, 2^420324133081 is an apocalyptic number.

It is an amenable number.

420324133081 is a deficient number, since it is larger than the sum of its proper divisors (1).

420324133081 is an equidigital number, since it uses as much as digits as its factorization.

420324133081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 420324133081 in words is "four hundred twenty billion, three hundred twenty-four million, one hundred thirty-three thousand, eighty-one".