115531520250430 has 32 divisors (see below), whose sum is σ = 219563162789760. Its totient is φ = 43648098579360.

The previous prime is 115531520250359. The next prime is 115531520250431. The reversal of 115531520250430 is 34052025135511.

It is a self number, because there is not a number n which added to its sum of digits gives 115531520250430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115531520250431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918457704 + ... + 918583483.

It is an arithmetic number, because the mean of its divisors is an integer number (6861348837180).

Almost surely, 2^{115531520250430} is an apocalyptic number.

115531520250430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115531520250430 is a deficient number, since it is larger than the sum of its proper divisors (104031642539330).

115531520250430 is a wasteful number, since it uses less digits than its factorization.

115531520250430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837041544.

The product of its (nonzero) digits is 90000, while the sum is 37.

Adding to 115531520250430 its reverse (34052025135511), we get a palindrome (149583545385941).

The spelling of 115531520250430 in words is "one hundred fifteen trillion, five hundred thirty-one billion, five hundred twenty million, two hundred fifty thousand, four hundred thirty".