131412321231440 has 40 divisors (see below), whose sum is σ = 307731730679520. Its totient is φ = 52186763534976.

The previous prime is 131412321231437. The next prime is 131412321231481. The reversal of 131412321231440 is 44132123214131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 131412321231397 and 131412321231406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5908816274 + ... + 5908838513.

It is an arithmetic number, because the mean of its divisors is an integer number (7693293266988).

Almost surely, 2^{131412321231440} is an apocalyptic number.

131412321231440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131412321231440 is an abundant number, since it is smaller than the sum of its proper divisors (176319409448080).

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

131412321231440 is a wasteful number, since it uses less digits than its factorization.

131412321231440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11817654939 (or 11817654933 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 131412321231440 its reverse (44132123214131), we get a palindrome (175544444445571).

The spelling of 131412321231440 in words is "one hundred thirty-one trillion, four hundred twelve billion, three hundred twenty-one million, two hundred thirty-one thousand, four hundred forty".