420515011 has 12 divisors (see below), whose sum is σ = 514917480. Its totient is φ = 341470080.

The previous prime is 420514987. The next prime is 420515033. The reversal of 420515011 is 110515024.

It is not a de Polignac number, because 420515011 - 2⁵ = 420514979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 420515011.

It is not an unprimeable number, because it can be changed into a prime (420515041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224910 + ... + 226771.

It is an arithmetic number, because the mean of its divisors is an integer number (42909790).

Almost surely, 2^420515011 is an apocalyptic number.

420515011 is a deficient number, since it is larger than the sum of its proper divisors (94402469).

420515011 is a wasteful number, since it uses less digits than its factorization.

420515011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451714 (or 451707 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 420515011 is about 20506.4626642432. The cubic root of 420515011 is about 749.1932130302.

The spelling of 420515011 in words is "four hundred twenty million, five hundred fifteen thousand, eleven".