421042115230201 has 2 divisors, whose sum is σ = 421042115230202. Its totient is φ = 421042115230200.

The previous prime is 421042115230171. The next prime is 421042115230223. The reversal of 421042115230201 is 102032511240124.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337627211383225 + 83414903846976 = 18374635^2 + 9133176^2 .

It is a cyclic number.

It is not a de Polignac number, because 421042115230201 - 2⁴¹ = 418843091974649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421042115230201.

It is not a weakly prime, because it can be changed into another prime (421042115230301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210521057615100 + 210521057615101.

It is an arithmetic number, because the mean of its divisors is an integer number (210521057615101).

Almost surely, 2^{421042115230201} is an apocalyptic number.

It is an amenable number.

421042115230201 is a deficient number, since it is larger than the sum of its proper divisors (1).

421042115230201 is an equidigital number, since it uses as much as digits as its factorization.

421042115230201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 421042115230201 its reverse (102032511240124), we get a palindrome (523074626470325).

The spelling of 421042115230201 in words is "four hundred twenty-one trillion, forty-two billion, one hundred fifteen million, two hundred thirty thousand, two hundred one".