131123313232 has 20 divisors (see below), whose sum is σ = 258216198676. Its totient is φ = 64486874880.

The previous prime is 131123313197. The next prime is 131123313311. The reversal of 131123313232 is 232313321131.

It can be written as a sum of positive squares in 2 ways, for example, as 66304190016 + 64819123216 = 257496^2 + 254596^2 .

It is a super-3 number, since 3×131123313232³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131123313197 and 131123313206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67172853 + ... + 67174804.

Almost surely, 2^131123313232 is an apocalyptic number.

It is an amenable number.

131123313232 is a deficient number, since it is larger than the sum of its proper divisors (127092885444).

131123313232 is a wasteful number, since it uses less digits than its factorization.

131123313232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134347726 (or 134347720 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

Adding to 131123313232 its reverse (232313321131), we get a palindrome (363436634363).

The spelling of 131123313232 in words is "one hundred thirty-one billion, one hundred twenty-three million, three hundred thirteen thousand, two hundred thirty-two".