1121111342 has 48 divisors (see below), whose sum is σ = 1986294912. Its totient is φ = 471191040.

The previous prime is 1121111317. The next prime is 1121111399. The reversal of 1121111342 is 2431111211.

It is a super-2 number, since 2×1121111342² = 2513781282322081928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1121111342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230528 + ... + 235340.

It is an arithmetic number, because the mean of its divisors is an integer number (41381144).

Almost surely, 2^1121111342 is an apocalyptic number.

1121111342 is a deficient number, since it is larger than the sum of its proper divisors (865183570).

1121111342 is a wasteful number, since it uses less digits than its factorization.

1121111342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893 (or 4876 counting only the distinct ones).

The product of its digits is 48, while the sum is 17.

The square root of 1121111342 is about 33483.0007914464. Note that the first 3 decimals coincide. The cubic root of 1121111342 is about 1038.8421971057.

Adding to 1121111342 its reverse (2431111211), we get a palindrome (3552222553).

The spelling of 1121111342 in words is "one billion, one hundred twenty-one million, one hundred eleven thousand, three hundred forty-two".