1115115616011 has 4 divisors (see below), whose sum is σ = 1486820821352. Its totient is φ = 743410410672.

The previous prime is 1115115616007. The next prime is 1115115616033. The reversal of 1115115616011 is 1106165115111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1115115616011 - 2² = 1115115616007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115115616011.

It is not an unprimeable number, because it can be changed into a prime (1115115616081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185852602666 + ... + 185852602671.

It is an arithmetic number, because the mean of its divisors is an integer number (371705205338).

Almost surely, 2^{1115115616011} is an apocalyptic number.

1115115616011 is a deficient number, since it is larger than the sum of its proper divisors (371705205341).

1115115616011 is an equidigital number, since it uses as much as digits as its factorization.

1115115616011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371705205340.

The product of its (nonzero) digits is 900, while the sum is 30.

The spelling of 1115115616011 in words is "one trillion, one hundred fifteen billion, one hundred fifteen million, six hundred sixteen thousand, eleven".