1121142113 has 12 divisors (see below), whose sum is σ = 1387450368. Its totient is φ = 887056560.

The previous prime is 1121142109. The next prime is 1121142137. The reversal of 1121142113 is 3112411211.

It is not a de Polignac number, because 1121142113 - 2² = 1121142109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1121142091 and 1121142100.

It is not an unprimeable number, because it can be changed into a prime (1121142173) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 472673 + ... + 475038.

It is an arithmetic number, because the mean of its divisors is an integer number (115620864).

Almost surely, 2^1121142113 is an apocalyptic number.

1121142113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1121142113 is a deficient number, since it is larger than the sum of its proper divisors (266308255).

1121142113 is an equidigital number, since it uses as much as digits as its factorization.

1121142113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947744 (or 947731 counting only the distinct ones).

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

The square root of 1121142113 is about 33483.4602901194. The cubic root of 1121142113 is about 1038.8517013418.

Adding to 1121142113 its reverse (3112411211), we get a palindrome (4233553324).

The spelling of 1121142113 in words is "one billion, one hundred twenty-one million, one hundred forty-two thousand, one hundred thirteen".