300403400423 has 4 divisors (see below), whose sum is σ = 343318171920. Its totient is φ = 257488628928.

The previous prime is 300403400399. The next prime is 300403400441. The reversal of 300403400423 is 324004304003.

It is a happy number.

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 300403400423 - 2⁶ = 300403400359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300403400483) 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, 21457385738 + ... + 21457385751.

It is an arithmetic number, because the mean of its divisors is an integer number (85829542980).

Almost surely, 2^300403400423 is an apocalyptic number.

300403400423 is a deficient number, since it is larger than the sum of its proper divisors (42914771497).

300403400423 is an equidigital number, since it uses as much as digits as its factorization.

300403400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42914771496.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 300403400423 its reverse (324004304003), we get a palindrome (624407704426).

The spelling of 300403400423 in words is "three hundred billion, four hundred three million, four hundred thousand, four hundred twenty-three".