421104113 has 2 divisors, whose sum is σ = 421104114. Its totient is φ = 421104112.

The previous prime is 421104109. The next prime is 421104139. The reversal of 421104113 is 311401124.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346592689 + 74511424 = 18617^2 + 8632^2 .

It is a cyclic number.

It is not a de Polignac number, because 421104113 - 2² = 421104109 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 421104091 and 421104100.

It is not a weakly prime, because it can be changed into another prime (421104413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210552056 + 210552057.

It is an arithmetic number, because the mean of its divisors is an integer number (210552057).

Almost surely, 2^421104113 is an apocalyptic number.

It is an amenable number.

421104113 is a deficient number, since it is larger than the sum of its proper divisors (1).

421104113 is an equidigital number, since it uses as much as digits as its factorization.

421104113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 421104113 is about 20520.8214504196. The cubic root of 421104113 is about 749.5428995429.

Adding to 421104113 its reverse (311401124), we get a palindrome (732505237).

The spelling of 421104113 in words is "four hundred twenty-one million, one hundred four thousand, one hundred thirteen".