131201222102131 has 4 divisors (see below), whose sum is σ = 131201721811792. Its totient is φ = 131200722392472.

The previous prime is 131201222102063. The next prime is 131201222102161.

It is a happy number.

131201222102131 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131201222102131 - 2¹¹ = 131201222100083 is a prime.

It is a super-2 number, since 2×131201222102131² (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 (131201222102161) 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, 249460791 + ... + 249986176.

It is an arithmetic number, because the mean of its divisors is an integer number (32800430452948).

Almost surely, 2^{131201222102131} is an apocalyptic number.

131201222102131 is a deficient number, since it is larger than the sum of its proper divisors (499709661).

131201222102131 is an equidigital number, since it uses as much as digits as its factorization.

131201222102131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499709660.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 131201222102131 in words is "one hundred thirty-one trillion, two hundred one billion, two hundred twenty-two million, one hundred two thousand, one hundred thirty-one".