131343221131322 has 4 divisors (see below), whose sum is σ = 197014831696986. Its totient is φ = 65671610565660.

The previous prime is 131343221131289. The next prime is 131343221131379. The reversal of 131343221131322 is 223131122343131.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 105342696068281 + 26000525063041 = 10263659^2 + 5099071^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32835805282829 + ... + 32835805282832.

Almost surely, 2^{131343221131322} is an apocalyptic number.

131343221131322 is a deficient number, since it is larger than the sum of its proper divisors (65671610565664).

131343221131322 is an equidigital number, since it uses as much as digits as its factorization.

131343221131322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65671610565663.

The product of its digits is 15552, while the sum is 32.

Adding to 131343221131322 its reverse (223131122343131), we get a palindrome (354474343474453).

The spelling of 131343221131322 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred twenty-two".