1115143102515 has 64 divisors (see below), whose sum is σ = 1930716224640. Its totient is φ = 546355998720.

The previous prime is 1115143102481. The next prime is 1115143102519. The reversal of 1115143102515 is 5152013415111.

It is not a de Polignac number, because 1115143102515 - 2¹⁶ = 1115143036979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1115143102519) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143829879 + ... + 143837631.

It is an arithmetic number, because the mean of its divisors is an integer number (30167441010).

Almost surely, 2^{1115143102515} is an apocalyptic number.

1115143102515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1115143102515 is a deficient number, since it is larger than the sum of its proper divisors (815573122125).

1115143102515 is a wasteful number, since it uses less digits than its factorization.

1115143102515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11224.

The product of its (nonzero) digits is 3000, while the sum is 30.

Adding to 1115143102515 its reverse (5152013415111), we get a palindrome (6267156517626).

The spelling of 1115143102515 in words is "one trillion, one hundred fifteen billion, one hundred forty-three million, one hundred two thousand, five hundred fifteen".