631555135321341 has 32 divisors (see below), whose sum is σ = 1060050682349568. Its totient is φ = 324895341320640.

The previous prime is 631555135321337. The next prime is 631555135321349. The reversal of 631555135321341 is 143123531555136.

It is not a de Polignac number, because 631555135321341 - 2² = 631555135321337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631555135321349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13271844726 + ... + 13271892311.

It is an arithmetic number, because the mean of its divisors is an integer number (33126583823424).

Almost surely, 2^{631555135321341} is an apocalyptic number.

It is an amenable number.

631555135321341 is a deficient number, since it is larger than the sum of its proper divisors (428495547028227).

631555135321341 is a wasteful number, since it uses less digits than its factorization.

631555135321341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26543737161.

The product of its digits is 2430000, while the sum is 48.

Adding to 631555135321341 its reverse (143123531555136), we get a palindrome (774678666876477).

The spelling of 631555135321341 in words is "six hundred thirty-one trillion, five hundred fifty-five billion, one hundred thirty-five million, three hundred twenty-one thousand, three hundred forty-one".