420041320543 has 32 divisors (see below), whose sum is σ = 470521316160. Its totient is φ = 372309073920.

The previous prime is 420041320487. The next prime is 420041320577. The reversal of 420041320543 is 345023140024.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 420041320543 - 2¹³ = 420041312351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420041320583) 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, 60252048 + ... + 60259018.

It is an arithmetic number, because the mean of its divisors is an integer number (14703791130).

Almost surely, 2^420041320543 is an apocalyptic number.

420041320543 is a deficient number, since it is larger than the sum of its proper divisors (50479995617).

420041320543 is a wasteful number, since it uses less digits than its factorization.

420041320543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7867.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 420041320543 its reverse (345023140024), we get a palindrome (765064460567).

The spelling of 420041320543 in words is "four hundred twenty billion, forty-one million, three hundred twenty thousand, five hundred forty-three".