403230413021 has 2 divisors, whose sum is σ = 403230413022. Its totient is φ = 403230413020.

The previous prime is 403230413009. The next prime is 403230413063. The reversal of 403230413021 is 120314032304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333782352121 + 69448060900 = 577739^2 + 263530^2 .

It is a cyclic number.

It is not a de Polignac number, because 403230413021 - 2²⁶ = 403163304157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403230413221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201615206510 + 201615206511.

It is an arithmetic number, because the mean of its divisors is an integer number (201615206511).

Almost surely, 2^403230413021 is an apocalyptic number.

It is an amenable number.

403230413021 is a deficient number, since it is larger than the sum of its proper divisors (1).

403230413021 is an equidigital number, since it uses as much as digits as its factorization.

403230413021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 403230413021 its reverse (120314032304), we get a palindrome (523544445325).

The spelling of 403230413021 in words is "four hundred three billion, two hundred thirty million, four hundred thirteen thousand, twenty-one".