1113120123 has 8 divisors (see below), whose sum is σ = 1484682000. Its totient is φ = 741819168.

The previous prime is 1113120119. The next prime is 1113120143. The reversal of 1113120123 is 3210213111.

It is a happy number.

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

It is not a de Polignac number, because 1113120123 - 2² = 1113120119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113120103) by changing a digit.

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, 55048 + ... + 72501.

It is an arithmetic number, because the mean of its divisors is an integer number (185585250).

Almost surely, 2^1113120123 is an apocalyptic number.

1113120123 is a deficient number, since it is larger than the sum of its proper divisors (371561877).

1113120123 is a wasteful number, since it uses less digits than its factorization.

1113120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130461.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1113120123 is about 33363.4549020332. The cubic root of 1113120123 is about 1036.3680394976.

Adding to 1113120123 its reverse (3210213111), we get a palindrome (4323333234).

The spelling of 1113120123 in words is "one billion, one hundred thirteen million, one hundred twenty thousand, one hundred twenty-three".