115242243212240 has 40 divisors (see below), whose sum is σ = 272330645241768. Its totient is φ = 45341210442240.

The previous prime is 115242243212209. The next prime is 115242243212287. The reversal of 115242243212240 is 42212342242511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 505839578176 + 114736403634064 = 711224^2 + 10711508^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 115242243212240.

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, 11807602007 + ... + 11807611766.

Almost surely, 2^{115242243212240} is an apocalyptic number.

115242243212240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115242243212240 is an abundant number, since it is smaller than the sum of its proper divisors (157088402029528).

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

115242243212240 is a wasteful number, since it uses less digits than its factorization.

115242243212240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23615213847 (or 23615213841 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 115242243212240 its reverse (42212342242511), we get a palindrome (157454585454751).

The spelling of 115242243212240 in words is "one hundred fifteen trillion, two hundred forty-two billion, two hundred forty-three million, two hundred twelve thousand, two hundred forty".