435120421 has 2 divisors, whose sum is σ = 435120422. Its totient is φ = 435120420.

The previous prime is 435120409. The next prime is 435120443. The reversal of 435120421 is 124021534.

It is an a-pointer prime, because the next prime (435120443) can be obtained adding 435120421 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426629025 + 8491396 = 20655^2 + 2914^2 .

It is a cyclic number.

It is not a de Polignac number, because 435120421 - 2¹⁹ = 434596133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 435120392 and 435120401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (435120451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217560210 + 217560211.

It is an arithmetic number, because the mean of its divisors is an integer number (217560211).

Almost surely, 2^435120421 is an apocalyptic number.

It is an amenable number.

435120421 is a deficient number, since it is larger than the sum of its proper divisors (1).

435120421 is an equidigital number, since it uses as much as digits as its factorization.

435120421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 435120421 is about 20859.5402873601. The cubic root of 435120421 is about 757.7683965782.

Adding to 435120421 its reverse (124021534), we get a palindrome (559141955).

The spelling of 435120421 in words is "four hundred thirty-five million, one hundred twenty thousand, four hundred twenty-one".