115231214343440 has 160 divisors (see below), whose sum is σ = 289616133381120. Its totient is φ = 42385750935552.

The previous prime is 115231214343419. The next prime is 115231214343449. The reversal of 115231214343440 is 44343412132511.

It is a junction number, because it is equal to n+sod(n) for n = 115231214343394 and 115231214343403.

It is not an unprimeable number, because it can be changed into a prime (115231214343449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294612326 + ... + 295003194.

It is an arithmetic number, because the mean of its divisors is an integer number (1810100833632).

Almost surely, 2^{115231214343440} is an apocalyptic number.

115231214343440 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 115231214343440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144808066690560).

115231214343440 is an abundant number, since it is smaller than the sum of its proper divisors (174384919037680).

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

115231214343440 is a wasteful number, since it uses less digits than its factorization.

115231214343440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391969 (or 391963 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 115231214343440 its reverse (44343412132511), we get a palindrome (159574626475951).

The spelling of 115231214343440 in words is "one hundred fifteen trillion, two hundred thirty-one billion, two hundred fourteen million, three hundred forty-three thousand, four hundred forty".