131221324410112 has 36 divisors (see below), whose sum is σ = 261956058376320. Its totient is φ = 65604151275008.

The previous prime is 131221324410107. The next prime is 131221324410217. The reversal of 131221324410112 is 211014423122131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22848058 + ... + 28008505.

It is an arithmetic number, because the mean of its divisors is an integer number (7276557177120).

Almost surely, 2^{131221324410112} is an apocalyptic number.

It is an amenable number.

131221324410112 is a deficient number, since it is larger than the sum of its proper divisors (130734733966208).

131221324410112 is an equidigital number, since it uses as much as digits as its factorization.

131221324410112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50866658 (or 50866644 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 131221324410112 its reverse (211014423122131), we get a palindrome (342235747532243).

The spelling of 131221324410112 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, three hundred twenty-four million, four hundred ten thousand, one hundred twelve".