421333041121 has 2 divisors, whose sum is σ = 421333041122. Its totient is φ = 421333041120.

The previous prime is 421333041089. The next prime is 421333041133. The reversal of 421333041121 is 121140333124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400005651600 + 21327389521 = 632460^2 + 146039^2 .

It is a cyclic number.

It is not a de Polignac number, because 421333041121 - 2⁵ = 421333041089 is a prime.

It is not a weakly prime, because it can be changed into another prime (421333042121) 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, 210666520560 + 210666520561.

It is an arithmetic number, because the mean of its divisors is an integer number (210666520561).

Almost surely, 2^421333041121 is an apocalyptic number.

It is an amenable number.

421333041121 is a deficient number, since it is larger than the sum of its proper divisors (1).

421333041121 is an equidigital number, since it uses as much as digits as its factorization.

421333041121 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 25.

Adding to 421333041121 its reverse (121140333124), we get a palindrome (542473374245).

The spelling of 421333041121 in words is "four hundred twenty-one billion, three hundred thirty-three million, forty-one thousand, one hundred twenty-one".