131232122113121 has 8 divisors (see below), whose sum is σ = 132586916198184. Its totient is φ = 129877366510080.

The previous prime is 131232122113111. The next prime is 131232122113139. The reversal of 131232122113121 is 121311221232131.

It can be written as a sum of positive squares in 4 ways, for example, as 35200726320400 + 96031395792721 = 5933020^2 + 9799561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131232122113121 - 2¹⁰ = 131232122112097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131232122113111) 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 7 ways as a sum of consecutive naturals, for example, 2739590 + ... + 16430751.

It is an arithmetic number, because the mean of its divisors is an integer number (16573364524773).

Almost surely, 2^{131232122113121} is an apocalyptic number.

It is an amenable number.

131232122113121 is a deficient number, since it is larger than the sum of its proper divisors (1354794085063).

131232122113121 is an equidigital number, since it uses as much as digits as its factorization.

131232122113121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19241011.

The product of its digits is 864, while the sum is 26.

Adding to 131232122113121 its reverse (121311221232131), we get a palindrome (252543343345252).

The spelling of 131232122113121 in words is "one hundred thirty-one trillion, two hundred thirty-two billion, one hundred twenty-two million, one hundred thirteen thousand, one hundred twenty-one".