131123232232 has 8 divisors (see below), whose sum is σ = 245856060450. Its totient is φ = 65561616112.

The previous prime is 131123232223. The next prime is 131123232239. The reversal of 131123232232 is 232232321131.

It can be written as a sum of positive squares in only one way, i.e., 101043879876 + 30079352356 = 317874^2 + 173434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 131123232197 and 131123232206.

It is not an unprimeable number, because it can be changed into a prime (131123232239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8195202007 + ... + 8195202022.

Almost surely, 2^131123232232 is an apocalyptic number.

It is an amenable number.

131123232232 is a deficient number, since it is larger than the sum of its proper divisors (114732828218).

131123232232 is a wasteful number, since it uses less digits than its factorization.

131123232232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16390404035 (or 16390404031 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 131123232232 its reverse (232232321131), we get a palindrome (363355553363).

The spelling of 131123232232 in words is "one hundred thirty-one billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred thirty-two".