420113032505504 has 24 divisors (see below), whose sum is σ = 890720419880340. Its totient is φ = 193898322694656.

The previous prime is 420113032505503. The next prime is 420113032505539. The reversal of 420113032505504 is 405505230311024.

It can be written as a sum of positive squares in 2 ways, for example, as 420092082837904 + 20949667600 = 20496148^2 + 144740^2 .

It is not an unprimeable number, because it can be changed into a prime (420113032505503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504943548269 + ... + 504943549100.

Almost surely, 2^{420113032505504} is an apocalyptic number.

It is an amenable number.

420113032505504 is an abundant number, since it is smaller than the sum of its proper divisors (470607387374836).

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

420113032505504 is a wasteful number, since it uses less digits than its factorization.

420113032505504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009887097392 (or 1009887097384 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 420113032505504 its reverse (405505230311024), we get a palindrome (825618262816528).

The spelling of 420113032505504 in words is "four hundred twenty trillion, one hundred thirteen billion, thirty-two million, five hundred five thousand, five hundred four".