131430032121440 has 288 divisors, whose sum is σ = 337753802405376. Its totient is φ = 48307793264640.

The previous prime is 131430032121419. The next prime is 131430032121467. The reversal of 131430032121440 is 44121230034131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8259278924 + ... + 8259294836.

It is an arithmetic number, because the mean of its divisors is an integer number (1172756258352).

Almost surely, 2^{131430032121440} is an apocalyptic number.

131430032121440 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 131430032121440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168876901202688).

131430032121440 is an abundant number, since it is smaller than the sum of its proper divisors (206323770283936).

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

131430032121440 is a wasteful number, since it uses less digits than its factorization.

131430032121440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17322 (or 17301 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 131430032121440 its reverse (44121230034131), we get a palindrome (175551262155571).

The spelling of 131430032121440 in words is "one hundred thirty-one trillion, four hundred thirty billion, thirty-two million, one hundred twenty-one thousand, four hundred forty".