131343232020304 has 20 divisors (see below), whose sum is σ = 254481798518676. Its totient is φ = 65670509821952.

The previous prime is 131343232020289. The next prime is 131343232020349. The reversal of 131343232020304 is 403020232343131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39316662090000 + 92026569930304 = 6270300^2 + 9593048^2 .

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, 68156779 + ... + 70057354.

Almost surely, 2^{131343232020304} is an apocalyptic number.

It is an amenable number.

131343232020304 is a deficient number, since it is larger than the sum of its proper divisors (123138566498372).

131343232020304 is a wasteful number, since it uses less digits than its factorization.

131343232020304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138273534 (or 138273528 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 131343232020304 its reverse (403020232343131), we get a palindrome (534363464363435).

The spelling of 131343232020304 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty-two million, twenty thousand, three hundred four".