420242302100 has 108 divisors (see below), whose sum is σ = 963090483264. Its totient is φ = 159143434560.

The previous prime is 420242302093. The next prime is 420242302111. The reversal of 420242302100 is 1203242024.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 73171829 + ... + 73177571.

Almost surely, 2^420242302100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420242302100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (481545241632).

420242302100 is an abundant number, since it is smaller than the sum of its proper divisors (542848181164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420242302100 is a wasteful number, since it uses less digits than its factorization.

420242302100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822 (or 7796 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 420242302100 its reverse (1203242024), we get a palindrome (421445544124).

The spelling of 420242302100 in words is "four hundred twenty billion, two hundred forty-two million, three hundred two thousand, one hundred".