1121111016 has 32 divisors (see below), whose sum is σ = 2842257600. Its totient is φ = 368439680.

The previous prime is 1121110997. The next prime is 1121111023. The reversal of 1121111016 is 6101111211.

It is a junction number, because it is equal to n+sod(n) for n = 1121110986 and 1121111004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327261 + ... + 330668.

It is an arithmetic number, because the mean of its divisors is an integer number (88820550).

Almost surely, 2^1121111016 is an apocalyptic number.

It is an amenable number.

1121111016 is an abundant number, since it is smaller than the sum of its proper divisors (1721146584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121111016 is a wasteful number, since it uses less digits than its factorization.

1121111016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658009 (or 658005 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 15.

The square root of 1121111016 is about 33482.9959233041. The cubic root of 1121111016 is about 1038.8420964132.

Adding to 1121111016 its reverse (6101111211), we get a palindrome (7222222227).

The spelling of 1121111016 in words is "one billion, one hundred twenty-one million, one hundred eleven thousand, sixteen".