131112111143221 has 8 divisors (see below), whose sum is σ = 143590838801760. Its totient is φ = 118975266434352.

The previous prime is 131112111143197. The next prime is 131112111143249. The reversal of 131112111143221 is 122341111211131.

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 131112111143221 - 2⁷ = 131112111143093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131112111140221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85470736615 + ... + 85470738148.

It is an arithmetic number, because the mean of its divisors is an integer number (17948854850220).

Almost surely, 2^{131112111143221} is an apocalyptic number.

It is an amenable number.

131112111143221 is a deficient number, since it is larger than the sum of its proper divisors (12478727658539).

131112111143221 is a wasteful number, since it uses less digits than its factorization.

131112111143221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170941474835.

The product of its digits is 288, while the sum is 25.

Adding to 131112111143221 its reverse (122341111211131), we get a palindrome (253453222354352).

The spelling of 131112111143221 in words is "one hundred thirty-one trillion, one hundred twelve billion, one hundred eleven million, one hundred forty-three thousand, two hundred twenty-one".