420420004011541 has 4 divisors (see below), whose sum is σ = 420554710840684. Its totient is φ = 420285297182400.

The previous prime is 420420004011517. The next prime is 420420004011547. The reversal of 420420004011541 is 145110400024024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48575463552100 + 371844540459441 = 6969610^2 + 19283271^2 .

It is a cyclic number.

It is not a de Polignac number, because 420420004011541 - 2¹¹ = 420420004009493 is a prime.

It is a super-2 number, since 2×420420004011541² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420420004011547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67353409890 + ... + 67353416131.

It is an arithmetic number, because the mean of its divisors is an integer number (105138677710171).

Almost surely, 2^{420420004011541} is an apocalyptic number.

It is an amenable number.

420420004011541 is a deficient number, since it is larger than the sum of its proper divisors (134706829143).

420420004011541 is a wasteful number, since it uses less digits than its factorization.

420420004011541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134706829142.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 420420004011541 its reverse (145110400024024), we get a palindrome (565530404035565).

The spelling of 420420004011541 in words is "four hundred twenty trillion, four hundred twenty billion, four million, eleven thousand, five hundred forty-one".