421113105 has 48 divisors (see below), whose sum is σ = 851260800. Its totient is φ = 192501792.

The previous prime is 421113101. The next prime is 421113127. The reversal of 421113105 is 501311124.

It is not a de Polignac number, because 421113105 - 2² = 421113101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421113101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1794 + ... + 29076.

It is an arithmetic number, because the mean of its divisors is an integer number (17734600).

Almost surely, 2^421113105 is an apocalyptic number.

421113105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

421113105 is an abundant number, since it is smaller than the sum of its proper divisors (430147695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421113105 is a wasteful number, since it uses less digits than its factorization.

421113105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27315 (or 27298 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 421113105 is about 20521.0405437931. The cubic root of 421113105 is about 749.5482345987.

Adding to 421113105 its reverse (501311124), we get a palindrome (922424229).

It can be divided in two parts, 421 and 113105, that added together give a triangular number (113526 = T₄₇₆).

The spelling of 421113105 in words is "four hundred twenty-one million, one hundred thirteen thousand, one hundred five".