420232421253320 has 96 divisors (see below), whose sum is σ = 1040634724657320. Its totient is φ = 152619088527360.

The previous prime is 420232421253311. The next prime is 420232421253353. The reversal of 420232421253320 is 23352124232024.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 191603566304836 + 228628854948484 = 13842094^2 + 15120478^2 .

It is a super-2 number, since 2×420232421253320² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509133209 + ... + 509957928.

Almost surely, 2^{420232421253320} is an apocalyptic number.

420232421253320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420232421253320 is an abundant number, since it is smaller than the sum of its proper divisors (620402303404000).

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

420232421253320 is a wasteful number, since it uses less digits than its factorization.

420232421253320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019091235 (or 1019091218 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 420232421253320 its reverse (23352124232024), we get a palindrome (443584545485344).

The spelling of 420232421253320 in words is "four hundred twenty trillion, two hundred thirty-two billion, four hundred twenty-one million, two hundred fifty-three thousand, three hundred twenty".