115240520331 has 12 divisors (see below), whose sum is σ = 166462013952. Its totient is φ = 76825405296.

The previous prime is 115240520281. The next prime is 115240520347. The reversal of 115240520331 is 133025042511.

115240520331 is a `hidden beast` number, since 1 + 1 + 52 + 405 + 203 + 3 + 1 = 666.

It is not a de Polignac number, because 115240520331 - 2¹³ = 115240512139 is a prime.

It is a super-2 number, since 2×115240520331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115240520295 and 115240520304.

It is not an unprimeable number, because it can be changed into a prime (115240524331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456945 + ... + 662781.

It is an arithmetic number, because the mean of its divisors is an integer number (13871834496).

Almost surely, 2^115240520331 is an apocalyptic number.

115240520331 is a deficient number, since it is larger than the sum of its proper divisors (51221493621).

115240520331 is a wasteful number, since it uses less digits than its factorization.

115240520331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268050 (or 268047 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 115240520331 its reverse (133025042511), we get a palindrome (248265562842).

The spelling of 115240520331 in words is "one hundred fifteen billion, two hundred forty million, five hundred twenty thousand, three hundred thirty-one".