423350661603 has 4 divisors (see below), whose sum is σ = 564467548808. Its totient is φ = 282233774400.

The previous prime is 423350661593. The next prime is 423350661659. The reversal of 423350661603 is 306166053324.

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

It is not a de Polignac number, because 423350661603 - 2⁵ = 423350661571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423350661673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70558443598 + ... + 70558443603.

It is an arithmetic number, because the mean of its divisors is an integer number (141116887202).

Almost surely, 2^423350661603 is an apocalyptic number.

423350661603 is a deficient number, since it is larger than the sum of its proper divisors (141116887205).

423350661603 is a wasteful number, since it uses less digits than its factorization.

423350661603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141116887204.

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 423350661603 in words is "four hundred twenty-three billion, three hundred fifty million, six hundred sixty-one thousand, six hundred three".