131210420432122 has 4 divisors (see below), whose sum is σ = 196815630648186. Its totient is φ = 65605210216060.

The previous prime is 131210420432071. The next prime is 131210420432261. The reversal of 131210420432122 is 221234024012131.

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., 95682848261121 + 35527572171001 = 9781761^2 + 5960501^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32802605108029 + ... + 32802605108032.

Almost surely, 2^{131210420432122} is an apocalyptic number.

131210420432122 is a deficient number, since it is larger than the sum of its proper divisors (65605210216064).

131210420432122 is an equidigital number, since it uses as much as digits as its factorization.

131210420432122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65605210216063.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 131210420432122 its reverse (221234024012131), we get a palindrome (352444444444253).

The spelling of 131210420432122 in words is "one hundred thirty-one trillion, two hundred ten billion, four hundred twenty million, four hundred thirty-two thousand, one hundred twenty-two".