1123312142 has 8 divisors (see below), whose sum is σ = 1685114832. Its totient is φ = 561607200.

The previous prime is 1123312121. The next prime is 1123312159. The reversal of 1123312142 is 2412133211.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21767 + ... + 52157.

It is an arithmetic number, because the mean of its divisors is an integer number (210639354).

Almost surely, 2^1123312142 is an apocalyptic number.

1123312142 is a deficient number, since it is larger than the sum of its proper divisors (561802690).

1123312142 is a wasteful number, since it uses less digits than its factorization.

1123312142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48874.

The product of its digits is 288, while the sum is 20.

The square root of 1123312142 is about 33515.8491165001. The cubic root of 1123312142 is about 1039.5215199109.

Adding to 1123312142 its reverse (2412133211), we get a palindrome (3535445353).

The spelling of 1123312142 in words is "one billion, one hundred twenty-three million, three hundred twelve thousand, one hundred forty-two".