421252011 has 6 divisors (see below), whose sum is σ = 608475140. Its totient is φ = 280834668.

The previous prime is 421251997. The next prime is 421252019. The reversal of 421252011 is 110252124.

It is not a de Polignac number, because 421252011 - 2⁶ = 421251947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421252019) 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 in 5 ways as a sum of consecutive naturals, for example, 23402881 + ... + 23402898.

Almost surely, 2^421252011 is an apocalyptic number.

421252011 is a deficient number, since it is larger than the sum of its proper divisors (187223129).

421252011 is a wasteful number, since it uses less digits than its factorization.

421252011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46805785 (or 46805782 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 421252011 is about 20524.4247422431. The cubic root of 421252011 is about 749.6306394603.

The spelling of 421252011 in words is "four hundred twenty-one million, two hundred fifty-two thousand, eleven".