201431104131055 has 4 divisors (see below), whose sum is σ = 241717324957272. Its totient is φ = 161144883304840.

The previous prime is 201431104130957. The next prime is 201431104131133. The reversal of 201431104131055 is 550131401134102.

It is a happy number.

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

It is not a de Polignac number, because 201431104131055 - 2¹¹ = 201431104129007 is a prime.

It is a super-3 number, since 3×201431104131055³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20143110413101 + ... + 20143110413110.

It is an arithmetic number, because the mean of its divisors is an integer number (60429331239318).

Almost surely, 2^{201431104131055} is an apocalyptic number.

201431104131055 is a deficient number, since it is larger than the sum of its proper divisors (40286220826217).

201431104131055 is an equidigital number, since it uses as much as digits as its factorization.

201431104131055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40286220826216.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 201431104131055 its reverse (550131401134102), we get a palindrome (751562505265157).

The spelling of 201431104131055 in words is "two hundred one trillion, four hundred thirty-one billion, one hundred four million, one hundred thirty-one thousand, fifty-five".