420453443401 has 4 divisors (see below), whose sum is σ = 420543077904. Its totient is φ = 420363808900.

The previous prime is 420453443387. The next prime is 420453443407. The reversal of 420453443401 is 104344354024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420453443401 - 2¹⁷ = 420453312329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420453443407) 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, 44810215 + ... + 44819596.

It is an arithmetic number, because the mean of its divisors is an integer number (105135769476).

Almost surely, 2^420453443401 is an apocalyptic number.

It is an amenable number.

420453443401 is a deficient number, since it is larger than the sum of its proper divisors (89634503).

420453443401 is an equidigital number, since it uses as much as digits as its factorization.

420453443401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89634502.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 420453443401 its reverse (104344354024), we get a palindrome (524797797425).

The spelling of 420453443401 in words is "four hundred twenty billion, four hundred fifty-three million, four hundred forty-three thousand, four hundred one".