420012401443 has 4 divisors (see below), whose sum is σ = 420780249160. Its totient is φ = 419244553728.

The previous prime is 420012401381. The next prime is 420012401447. The reversal of 420012401443 is 344104210024.

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

It is a cyclic number.

It is not a de Polignac number, because 420012401443 - 2²⁵ = 419978847011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420012401447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383923038 + ... + 383924131.

It is an arithmetic number, because the mean of its divisors is an integer number (105195062290).

Almost surely, 2^420012401443 is an apocalyptic number.

420012401443 is a deficient number, since it is larger than the sum of its proper divisors (767847717).

420012401443 is an equidigital number, since it uses as much as digits as its factorization.

420012401443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767847716.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 420012401443 its reverse (344104210024), we get a palindrome (764116611467).

The spelling of 420012401443 in words is "four hundred twenty billion, twelve million, four hundred one thousand, four hundred forty-three".