115203303515 has 4 divisors (see below), whose sum is σ = 138243964224. Its totient is φ = 92162642808.

The previous prime is 115203303473. The next prime is 115203303517. The reversal of 115203303515 is 515303302511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115203303515 - 2⁶ = 115203303451 is a prime.

It is a super-2 number, since 2×115203303515² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115203303517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11520330347 + ... + 11520330356.

It is an arithmetic number, because the mean of its divisors is an integer number (34560991056).

Almost surely, 2^115203303515 is an apocalyptic number.

115203303515 is a deficient number, since it is larger than the sum of its proper divisors (23040660709).

115203303515 is an equidigital number, since it uses as much as digits as its factorization.

115203303515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23040660708.

The product of its (nonzero) digits is 6750, while the sum is 29.

The spelling of 115203303515 in words is "one hundred fifteen billion, two hundred three million, three hundred three thousand, five hundred fifteen".