120345517515 has 32 divisors (see below), whose sum is σ = 201143854080. Its totient is φ = 61326688896.

The previous prime is 120345517483. The next prime is 120345517529. The reversal of 120345517515 is 515715543021.

It is not a de Polignac number, because 120345517515 - 2⁵ = 120345517483 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127269 + ... + 506841.

It is an arithmetic number, because the mean of its divisors is an integer number (6285745440).

Almost surely, 2^120345517515 is an apocalyptic number.

120345517515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120345517515 is a deficient number, since it is larger than the sum of its proper divisors (80798336565).

120345517515 is a wasteful number, since it uses less digits than its factorization.

120345517515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380523.

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 120345517515 in words is "one hundred twenty billion, three hundred forty-five million, five hundred seventeen thousand, five hundred fifteen".