420421250001 has 8 divisors (see below), whose sum is σ = 560566923840. Its totient is φ = 280278204752.

The previous prime is 420421249999. The next prime is 420421250021. The reversal of 420421250001 is 100052124024.

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 420421250001 - 2¹ = 420421249999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420421250001.

It is not an unprimeable number, because it can be changed into a prime (420421250021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247461 + ... + 949778.

It is an arithmetic number, because the mean of its divisors is an integer number (70070865480).

Almost surely, 2^420421250001 is an apocalyptic number.

It is an amenable number.

420421250001 is a deficient number, since it is larger than the sum of its proper divisors (140145673839).

420421250001 is a wasteful number, since it uses less digits than its factorization.

420421250001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314295.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 420421250001 its reverse (100052124024), we get a palindrome (520473374025).

The spelling of 420421250001 in words is "four hundred twenty billion, four hundred twenty-one million, two hundred fifty thousand, one".