1113115311 has 48 divisors (see below), whose sum is σ = 2092711680. Its totient is φ = 578234160.

The previous prime is 1113115309. The next prime is 1113115319. The reversal of 1113115311 is 1135113111.

1113115311 is a `hidden beast` number, since 1 + 1 + 131 + 1 + 531 + 1 = 666.

It is not a de Polignac number, because 1113115311 - 2¹ = 1113115309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113115319) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23691 + ... + 52796.

It is an arithmetic number, because the mean of its divisors is an integer number (43598160).

Almost surely, 2^1113115311 is an apocalyptic number.

1113115311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1113115311 is a deficient number, since it is larger than the sum of its proper divisors (979596369).

1113115311 is a wasteful number, since it uses less digits than its factorization.

1113115311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76521 (or 76508 counting only the distinct ones).

The product of its digits is 45, while the sum is 18.

The square root of 1113115311 is about 33363.3827871216. The cubic root of 1113115311 is about 1036.3665460948.

Adding to 1113115311 its reverse (1135113111), we get a palindrome (2248228422).

The spelling of 1113115311 in words is "one billion, one hundred thirteen million, one hundred fifteen thousand, three hundred eleven".