120253005515 has 16 divisors (see below), whose sum is σ = 144558662688. Its totient is φ = 96032526336.

The previous prime is 120253005503. The next prime is 120253005529. The reversal of 120253005515 is 515500352021.

It is a cyclic number.

It is not a de Polignac number, because 120253005515 - 2¹⁰ = 120253004491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6834269 + ... + 6851841.

It is an arithmetic number, because the mean of its divisors is an integer number (9034916418).

Almost surely, 2^120253005515 is an apocalyptic number.

120253005515 is a deficient number, since it is larger than the sum of its proper divisors (24305657173).

120253005515 is a wasteful number, since it uses less digits than its factorization.

120253005515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19918.

The product of its (nonzero) digits is 7500, while the sum is 29.

Adding to 120253005515 its reverse (515500352021), we get a palindrome (635753357536).

The spelling of 120253005515 in words is "one hundred twenty billion, two hundred fifty-three million, five thousand, five hundred fifteen".