421352510401 has 2 divisors, whose sum is σ = 421352510402. Its totient is φ = 421352510400.

The previous prime is 421352510389. The next prime is 421352510437. The reversal of 421352510401 is 104015253124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293521234176 + 127831276225 = 541776^2 + 357535^2 .

It is a cyclic number.

It is not a de Polignac number, because 421352510401 - 2⁷ = 421352510273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421352510401.

It is not a weakly prime, because it can be changed into another prime (421352510701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210676255200 + 210676255201.

It is an arithmetic number, because the mean of its divisors is an integer number (210676255201).

Almost surely, 2^421352510401 is an apocalyptic number.

It is an amenable number.

421352510401 is a deficient number, since it is larger than the sum of its proper divisors (1).

421352510401 is an equidigital number, since it uses as much as digits as its factorization.

421352510401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 421352510401 its reverse (104015253124), we get a palindrome (525367763525).

The spelling of 421352510401 in words is "four hundred twenty-one billion, three hundred fifty-two million, five hundred ten thousand, four hundred one".