423403220113 has 4 divisors (see below), whose sum is σ = 423404598708. Its totient is φ = 423401841520.

The previous prime is 423403220077. The next prime is 423403220173. The reversal of 423403220113 is 311022304324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 50513461504 + 372889758609 = 224752^2 + 610647^2 .

It is a cyclic number.

It is not a de Polignac number, because 423403220113 - 2³⁷ = 285964266641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423403220173) 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, 3495 + ... + 920227.

It is an arithmetic number, because the mean of its divisors is an integer number (105851149677).

Almost surely, 2^423403220113 is an apocalyptic number.

It is an amenable number.

423403220113 is a deficient number, since it is larger than the sum of its proper divisors (1378595).

423403220113 is an equidigital number, since it uses as much as digits as its factorization.

423403220113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378594.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 423403220113 its reverse (311022304324), we get a palindrome (734425524437).

The spelling of 423403220113 in words is "four hundred twenty-three billion, four hundred three million, two hundred twenty thousand, one hundred thirteen".