131212220341331 has 8 divisors (see below), whose sum is σ = 131937483276144. Its totient is φ = 130486961072160.

The previous prime is 131212220341297. The next prime is 131212220341337. The reversal of 131212220341331 is 133143022212131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131212220341331 is a prime.

It is a super-2 number, since 2×131212220341331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131212220341294 and 131212220341303.

It is not an unprimeable number, because it can be changed into a prime (131212220341337) 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, 103922981 + ... + 105177993.

It is an arithmetic number, because the mean of its divisors is an integer number (16492185409518).

Almost surely, 2^{131212220341331} is an apocalyptic number.

131212220341331 is a deficient number, since it is larger than the sum of its proper divisors (725262934813).

131212220341331 is a wasteful number, since it uses less digits than its factorization.

131212220341331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832821.

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

Adding to 131212220341331 its reverse (133143022212131), we get a palindrome (264355242553462).

The spelling of 131212220341331 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred twenty million, three hundred forty-one thousand, three hundred thirty-one".