131202133311321 has 12 divisors (see below), whose sum is σ = 189517250984100. Its totient is φ = 87466677294240.

The previous prime is 131202133311289. The next prime is 131202133311331. The reversal of 131202133311321 is 123113331202131.

131202133311321 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 2 + 1 + 3 + 331 + 1 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24796306608921 + 106405826702400 = 4979589^2 + 10315320^2 .

It is not a de Polignac number, because 131202133311321 - 2⁵ = 131202133311289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131202133311331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117042846 + ... + 118158503.

It is an arithmetic number, because the mean of its divisors is an integer number (15793104248675).

Almost surely, 2^{131202133311321} is an apocalyptic number.

It is an amenable number.

131202133311321 is a deficient number, since it is larger than the sum of its proper divisors (58315117672779).

131202133311321 is a wasteful number, since it uses less digits than its factorization.

131202133311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235263336 (or 235263333 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 131202133311321 its reverse (123113331202131), we get a palindrome (254315464513452).

The spelling of 131202133311321 in words is "one hundred thirty-one trillion, two hundred two billion, one hundred thirty-three million, three hundred eleven thousand, three hundred twenty-one".