431121324403 has 8 divisors (see below), whose sum is σ = 537501911040. Its totient is φ = 335938694280.

The previous prime is 431121324341. The next prime is 431121324449. The reversal of 431121324403 is 304423121134.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431121324403 - 2¹³ = 431121316211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431121324503) 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 7 ways as a sum of consecutive naturals, for example, 2799489043 + ... + 2799489196.

It is an arithmetic number, because the mean of its divisors is an integer number (67187738880).

Almost surely, 2^431121324403 is an apocalyptic number.

431121324403 is a deficient number, since it is larger than the sum of its proper divisors (106380586637).

431121324403 is a wasteful number, since it uses less digits than its factorization.

431121324403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598978257.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 431121324403 its reverse (304423121134), we get a palindrome (735544445537).

The spelling of 431121324403 in words is "four hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-four thousand, four hundred three".