431220105055 has 12 divisors (see below), whose sum is σ = 535923018072. Its totient is φ = 333080353760.

The previous prime is 431220105011. The next prime is 431220105103. The reversal of 431220105055 is 550501022134.

It is not a de Polignac number, because 431220105055 - 2⁷ = 431220104927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51270481 + ... + 51278890.

It is an arithmetic number, because the mean of its divisors is an integer number (44660251506).

Almost surely, 2^431220105055 is an apocalyptic number.

431220105055 is a deficient number, since it is larger than the sum of its proper divisors (104702913017).

431220105055 is a wasteful number, since it uses less digits than its factorization.

431220105055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102549434 (or 102549405 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 431220105055 its reverse (550501022134), we get a palindrome (981721127189).

The spelling of 431220105055 in words is "four hundred thirty-one billion, two hundred twenty million, one hundred five thousand, fifty-five".