420513500001 has 8 divisors (see below), whose sum is σ = 640782476224. Its totient is φ = 240293428560.

The previous prime is 420513499999. The next prime is 420513500027. The reversal of 420513500001 is 100005315024.

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

It is not a de Polignac number, because 420513500001 - 2¹ = 420513499999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 20024452381 = 420513500001 / (4 + 2 + 0 + 5 + 1 + 3 + 5 + 0 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420513500041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012226170 + ... + 10012226211.

It is an arithmetic number, because the mean of its divisors is an integer number (80097809528).

Almost surely, 2^420513500001 is an apocalyptic number.

It is an amenable number.

420513500001 is a deficient number, since it is larger than the sum of its proper divisors (220268976223).

420513500001 is a wasteful number, since it uses less digits than its factorization.

420513500001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20024452391.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 420513500001 its reverse (100005315024), we get a palindrome (520518815025).

The spelling of 420513500001 in words is "four hundred twenty billion, five hundred thirteen million, five hundred thousand, one".