1011131115 has 16 divisors (see below), whose sum is σ = 1623967488. Its totient is φ = 537217376.

The previous prime is 1011131087. The next prime is 1011131137. The reversal of 1011131115 is 5111311101.

1011131115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1011131115 - 2⁸ = 1011130859 is a prime.

It is a super-2 number, since 2×1011131115² = 2044772263442286450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1011131094 and 1011131103.

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, 124209 + ... + 132098.

It is an arithmetic number, because the mean of its divisors is an integer number (101497968).

Almost surely, 2^1011131115 is an apocalyptic number.

1011131115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1011131115 is a deficient number, since it is larger than the sum of its proper divisors (612836373).

1011131115 is a wasteful number, since it uses less digits than its factorization.

1011131115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256578.

The product of its (nonzero) digits is 15, while the sum is 15.

The square root of 1011131115 is about 31798.2879256101. The cubic root of 1011131115 is about 1003.6966893157.

Adding to 1011131115 its reverse (5111311101), we get a palindrome (6122442216).

The spelling of 1011131115 in words is "one billion, eleven million, one hundred thirty-one thousand, one hundred fifteen".