131313123232 has 24 divisors (see below), whose sum is σ = 258537077316. Its totient is φ = 65652913152.

The previous prime is 131313123203. The next prime is 131313123241. The reversal of 131313123232 is 232321313131.

It can be written as a sum of positive squares in 2 ways, for example, as 114025080976 + 17288042256 = 337676^2 + 131484^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131313123197 and 131313123206.

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, 526138 + ... + 734470.

Almost surely, 2^131313123232 is an apocalyptic number.

It is an amenable number.

131313123232 is a deficient number, since it is larger than the sum of its proper divisors (127223954084).

131313123232 is a wasteful number, since it uses less digits than its factorization.

131313123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228040 (or 228032 counting only the distinct ones).

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

Adding to 131313123232 its reverse (232321313131), we get a palindrome (363634436363).

The spelling of 131313123232 in words is "one hundred thirty-one billion, three hundred thirteen million, one hundred twenty-three thousand, two hundred thirty-two".