1121121142 has 16 divisors (see below), whose sum is σ = 1698724800. Its totient is φ = 554902848.

The previous prime is 1121121103. The next prime is 1121121263. The reversal of 1121121142 is 2411211211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94984 + ... + 106132.

It is an arithmetic number, because the mean of its divisors is an integer number (106170300).

Almost surely, 2^1121121142 is an apocalyptic number.

1121121142 is a deficient number, since it is larger than the sum of its proper divisors (577603658).

1121121142 is a wasteful number, since it uses less digits than its factorization.

1121121142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11655.

The product of its digits is 32, while the sum is 16.

The square root of 1121121142 is about 33483.1471340434. The cubic root of 1121121142 is about 1038.8452240497.

Adding to 1121121142 its reverse (2411211211), we get a palindrome (3532332353).

The spelling of 1121121142 in words is "one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred forty-two".