231550132105 has 32 divisors (see below), whose sum is σ = 285395804928. Its totient is φ = 180283449600.

The previous prime is 231550131947. The next prime is 231550132111. The reversal of 231550132105 is 501231055132.

It is not a de Polignac number, because 231550132105 - 2²¹ = 231548034953 is a prime.

It is a Duffinian 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 31 ways as a sum of consecutive naturals, for example, 50921442 + ... + 50925988.

It is an arithmetic number, because the mean of its divisors is an integer number (8918618904).

Almost surely, 2^231550132105 is an apocalyptic number.

It is an amenable number.

231550132105 is a deficient number, since it is larger than the sum of its proper divisors (53845672823).

231550132105 is a wasteful number, since it uses less digits than its factorization.

231550132105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6337.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 231550132105 its reverse (501231055132), we get a palindrome (732781187237).

The spelling of 231550132105 in words is "two hundred thirty-one billion, five hundred fifty million, one hundred thirty-two thousand, one hundred five".