1115131015 has 8 divisors (see below), whose sum is σ = 1339264080. Its totient is φ = 891366912.

The previous prime is 1115131013. The next prime is 1115131021. The reversal of 1115131015 is 5101315111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1115131015 - 2¹ = 1115131013 is a prime.

It is a super-2 number, since 2×1115131015² = 2487034361229860450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1115130983 and 1115131001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115131013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85545 + ... + 97714.

It is an arithmetic number, because the mean of its divisors is an integer number (167408010).

Almost surely, 2^1115131015 is an apocalyptic number.

1115131015 is a deficient number, since it is larger than the sum of its proper divisors (224133065).

1115131015 is a wasteful number, since it uses less digits than its factorization.

1115131015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184481.

The product of its (nonzero) digits is 75, while the sum is 19.

The square root of 1115131015 is about 33393.5774513603. The cubic root of 1115131015 is about 1036.9917429236.

Adding to 1115131015 its reverse (5101315111), we get a palindrome (6216446126).

The spelling of 1115131015 in words is "one billion, one hundred fifteen million, one hundred thirty-one thousand, fifteen".