1115511056011 has 8 divisors (see below), whose sum is σ = 1223292469248. Its totient is φ = 1008791529000.

The previous prime is 1115511055999. The next prime is 1115511056017. The reversal of 1115511056011 is 1106501155111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115511056011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115511056017) 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, 265469355 + ... + 265473556.

It is an arithmetic number, because the mean of its divisors is an integer number (152911558656).

Almost surely, 2^{1115511056011} is an apocalyptic number.

1115511056011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1115511056011 is a deficient number, since it is larger than the sum of its proper divisors (107781413237).

1115511056011 is a wasteful number, since it uses less digits than its factorization.

1115511056011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530943113.

The product of its (nonzero) digits is 750, while the sum is 28.

The spelling of 1115511056011 in words is "one trillion, one hundred fifteen billion, five hundred eleven million, fifty-six thousand, eleven".