1116542121 has 8 divisors (see below), whose sum is σ = 1496948544. Its totient is φ = 740248560.

The previous prime is 1116542101. The next prime is 1116542129. The reversal of 1116542121 is 1212456111.

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

It is not a de Polignac number, because 1116542121 - 2³⁰ = 42800297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1116542091 and 1116542100.

It is not an unprimeable number, because it can be changed into a prime (1116542129) 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, 1027581 + ... + 1028666.

It is an arithmetic number, because the mean of its divisors is an integer number (187118568).

Almost surely, 2^1116542121 is an apocalyptic number.

It is an amenable number.

1116542121 is a deficient number, since it is larger than the sum of its proper divisors (380406423).

1116542121 is a wasteful number, since it uses less digits than its factorization.

1116542121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056431.

The product of its digits is 480, while the sum is 24.

The square root of 1116542121 is about 33414.6991756622. The cubic root of 1116542121 is about 1037.4289676244.

Adding to 1116542121 its reverse (1212456111), we get a palindrome (2328998232).

The spelling of 1116542121 in words is "one billion, one hundred sixteen million, five hundred forty-two thousand, one hundred twenty-one".