131212240431040 has 112 divisors (see below), whose sum is σ = 313363370325600. Its totient is φ = 52331344220160.

The previous prime is 131212240431031. The next prime is 131212240431121. The reversal of 131212240431040 is 40134042212131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2922754834 + ... + 2922799726.

It is an arithmetic number, because the mean of its divisors is an integer number (2797887235050).

Almost surely, 2^{131212240431040} is an apocalyptic number.

131212240431040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131212240431040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156681685162800).

131212240431040 is an abundant number, since it is smaller than the sum of its proper divisors (182151129894560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131212240431040 is a wasteful number, since it uses less digits than its factorization.

131212240431040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71430 (or 71420 counting only the distinct ones).

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

Adding to 131212240431040 its reverse (40134042212131), we get a palindrome (171346282643171).

The spelling of 131212240431040 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred forty million, four hundred thirty-one thousand, forty".