231550132104 has 96 divisors (see below), whose sum is σ = 654562658880. Its totient is φ = 73807062912.

The previous prime is 231550131947. The next prime is 231550132111. The reversal of 231550132104 is 401231055132.

231550132104 is a `hidden beast` number, since 2 + 3 + 1 + 550 + 1 + 3 + 2 + 104 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6628107 + ... + 6662949.

It is an arithmetic number, because the mean of its divisors is an integer number (6818361030).

Almost surely, 2^231550132104 is an apocalyptic number.

231550132104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231550132104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327281329440).

231550132104 is an abundant number, since it is smaller than the sum of its proper divisors (423012526776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231550132104 is a wasteful number, since it uses less digits than its factorization.

231550132104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38891 (or 38884 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 231550132104 its reverse (401231055132), we get a palindrome (632781187236).

The spelling of 231550132104 in words is "two hundred thirty-one billion, five hundred fifty million, one hundred thirty-two thousand, one hundred four".