421085113 has 2 divisors, whose sum is σ = 421085114. Its totient is φ = 421085112.

The previous prime is 421085107. The next prime is 421085117. The reversal of 421085113 is 311580124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394737424 + 26347689 = 19868^2 + 5133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421085113 is a prime.

It is not a weakly prime, because it can be changed into another prime (421085117) 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, 210542556 + 210542557.

It is an arithmetic number, because the mean of its divisors is an integer number (210542557).

Almost surely, 2^421085113 is an apocalyptic number.

It is an amenable number.

421085113 is a deficient number, since it is larger than the sum of its proper divisors (1).

421085113 is an equidigital number, since it uses as much as digits as its factorization.

421085113 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 25.

The square root of 421085113 is about 20520.3585007670. The cubic root of 421085113 is about 749.5316263772.

The spelling of 421085113 in words is "four hundred twenty-one million, eighty-five thousand, one hundred thirteen".