420113234420 has 96 divisors (see below), whose sum is σ = 995134242816. Its totient is φ = 147595420800.

The previous prime is 420113234399. The next prime is 420113234459. The reversal of 420113234420 is 24432311024.

It is a self number, because there is not a number n which added to its sum of digits gives 420113234420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4088999 + ... + 4190481.

It is an arithmetic number, because the mean of its divisors is an integer number (10365981696).

Almost surely, 2^420113234420 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 420113234420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497567121408).

420113234420 is an abundant number, since it is smaller than the sum of its proper divisors (575021008396).

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

420113234420 is a wasteful number, since it uses less digits than its factorization.

420113234420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102141 (or 102139 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 420113234420 its reverse (24432311024), we get a palindrome (444545545444).

The spelling of 420113234420 in words is "four hundred twenty billion, one hundred thirteen million, two hundred thirty-four thousand, four hundred twenty".