420132120420 has 96 divisors (see below), whose sum is σ = 1203942362112. Its totient is φ = 109428254208.

The previous prime is 420132120409. The next prime is 420132120427. The reversal of 420132120420 is 24021231024.

It is not an unprimeable number, because it can be changed into a prime (420132120427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 412914 + ... + 1005366.

It is an arithmetic number, because the mean of its divisors is an integer number (12541066272).

Almost surely, 2^420132120420 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 420132120420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601971181056).

420132120420 is an abundant number, since it is smaller than the sum of its proper divisors (783810241692).

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

420132120420 is a wasteful number, since it uses less digits than its factorization.

420132120420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592741 (or 592739 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 420132120420 its reverse (24021231024), we get a palindrome (444153351444).

The spelling of 420132120420 in words is "four hundred twenty billion, one hundred thirty-two million, one hundred twenty thousand, four hundred twenty".