131223321132122 has 16 divisors (see below), whose sum is σ = 200616763352040. Its totient is φ = 64351905126912.

The previous prime is 131223321132121. The next prime is 131223321132161. The reversal of 131223321132122 is 221231123322131.

It can be written as a sum of positive squares in 4 ways, for example, as 131156297617801 + 67023514321 = 11452349^2 + 258889^2 .

It is not an unprimeable number, because it can be changed into a prime (131223321132121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209296847 + ... + 209922882.

Almost surely, 2^{131223321132122} is an apocalyptic number.

131223321132122 is a deficient number, since it is larger than the sum of its proper divisors (69393442219918).

131223321132122 is a wasteful number, since it uses less digits than its factorization.

131223321132122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419222737.

The product of its digits is 5184, while the sum is 29.

Adding to 131223321132122 its reverse (221231123322131), we get a palindrome (352454444454253).

The spelling of 131223321132122 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, three hundred twenty-one million, one hundred thirty-two thousand, one hundred twenty-two".