131021223122001 has 16 divisors (see below), whose sum is σ = 175852567399040. Its totient is φ = 86768684956800.

The previous prime is 131021223121891. The next prime is 131021223122047. The reversal of 131021223122001 is 100221322120131.

It is not a de Polignac number, because 131021223122001 - 2⁴⁵ = 95836851033169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131021223122081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180733611 + ... + 181457103.

It is an arithmetic number, because the mean of its divisors is an integer number (10990785462440).

Almost surely, 2^{131021223122001} is an apocalyptic number.

It is an amenable number.

131021223122001 is a deficient number, since it is larger than the sum of its proper divisors (44831344277039).

131021223122001 is a wasteful number, since it uses less digits than its factorization.

131021223122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123416.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 131021223122001 its reverse (100221322120131), we get a palindrome (231242545242132).

The spelling of 131021223122001 in words is "one hundred thirty-one trillion, twenty-one billion, two hundred twenty-three million, one hundred twenty-two thousand, one".