1121248109115 has 16 divisors (see below), whose sum is σ = 1993329972000. Its totient is φ = 597998991456.

The previous prime is 1121248109083. The next prime is 1121248109117. The reversal of 1121248109115 is 5119018421211.

It is not a de Polignac number, because 1121248109115 - 2⁵ = 1121248109083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121248109115.

It is not an unprimeable number, because it can be changed into a prime (1121248109117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4152770640 + ... + 4152770909.

It is an arithmetic number, because the mean of its divisors is an integer number (124583123250).

Almost surely, 2^{1121248109115} is an apocalyptic number.

1121248109115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1121248109115 is a deficient number, since it is larger than the sum of its proper divisors (872081862885).

1121248109115 is an equidigital number, since it uses as much as digits as its factorization.

1121248109115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8305541563 (or 8305541557 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 36.

The spelling of 1121248109115 in words is "one trillion, one hundred twenty-one billion, two hundred forty-eight million, one hundred nine thousand, one hundred fifteen".