431203323401 has 4 divisors (see below), whose sum is σ = 438272230404. Its totient is φ = 424134416400.

The previous prime is 431203323379. The next prime is 431203323403. The reversal of 431203323401 is 104323302134.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7693921225 + 423509402176 = 87715^2 + 650776^2 .

It is a cyclic number.

It is not a de Polignac number, because 431203323401 - 2⁶ = 431203323337 is a prime.

It is a super-2 number, since 2×431203323401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431203323403) 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, 3534453410 + ... + 3534453531.

It is an arithmetic number, because the mean of its divisors is an integer number (109568057601).

Almost surely, 2^431203323401 is an apocalyptic number.

It is an amenable number.

431203323401 is a deficient number, since it is larger than the sum of its proper divisors (7068907003).

431203323401 is an equidigital number, since it uses as much as digits as its factorization.

431203323401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068907002.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 431203323401 its reverse (104323302134), we get a palindrome (535526625535).

The spelling of 431203323401 in words is "four hundred thirty-one billion, two hundred three million, three hundred twenty-three thousand, four hundred one".