131311122302001 has 4 divisors (see below), whose sum is σ = 175081496402672. Its totient is φ = 87540748201332.

The previous prime is 131311122301903. The next prime is 131311122302027. The reversal of 131311122302001 is 100203221113131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131311122302001 - 2¹¹ = 131311122299953 is a prime.

It is a super-2 number, since 2×131311122302001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131311122302201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21885187050331 + ... + 21885187050336.

It is an arithmetic number, because the mean of its divisors is an integer number (43770374100668).

Almost surely, 2^{131311122302001} is an apocalyptic number.

It is an amenable number.

131311122302001 is a deficient number, since it is larger than the sum of its proper divisors (43770374100671).

131311122302001 is an equidigital number, since it uses as much as digits as its factorization.

131311122302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43770374100670.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 131311122302001 its reverse (100203221113131), we get a palindrome (231514343415132).

The spelling of 131311122302001 in words is "one hundred thirty-one trillion, three hundred eleven billion, one hundred twenty-two million, three hundred two thousand, one".