421012105 has 8 divisors (see below), whose sum is σ = 511301952. Its totient is φ = 332751408.

The previous prime is 421012087. The next prime is 421012129. The reversal of 421012105 is 501210124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421012105 - 2⁵ = 421012073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506829 + ... + 507658.

It is an arithmetic number, because the mean of its divisors is an integer number (63912744).

Almost surely, 2^421012105 is an apocalyptic number.

It is an amenable number.

421012105 is a deficient number, since it is larger than the sum of its proper divisors (90289847).

421012105 is a wasteful number, since it uses less digits than its factorization.

421012105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014575.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 421012105 is about 20518.5795073636. The cubic root of 421012105 is about 749.4883057863.

Adding to 421012105 its reverse (501210124), we get a palindrome (922222229).

The spelling of 421012105 in words is "four hundred twenty-one million, twelve thousand, one hundred five".