423005304403 has 16 divisors (see below), whose sum is σ = 483912136800. Its totient is φ = 366203738880.

The previous prime is 423005304389. The next prime is 423005304409. The reversal of 423005304403 is 304403500324.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423005304403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423005304409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9059148 + ... + 9105721.

It is an arithmetic number, because the mean of its divisors is an integer number (30244508550).

Almost surely, 2^423005304403 is an apocalyptic number.

423005304403 is a deficient number, since it is larger than the sum of its proper divisors (60906832397).

423005304403 is a wasteful number, since it uses less digits than its factorization.

423005304403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18164982.

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 423005304403 its reverse (304403500324), we get a palindrome (727408804727).

The spelling of 423005304403 in words is "four hundred twenty-three billion, five million, three hundred four thousand, four hundred three".