1123120313 has 4 divisors (see below), whose sum is σ = 1283566080. Its totient is φ = 962674548.

The previous prime is 1123120279. The next prime is 1123120357. The reversal of 1123120313 is 3130213211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1123120313 - 2¹⁰ = 1123119289 is a prime.

It is a super-2 number, since 2×1123120313² = 2522798474946435938, which contains 22 as substring.

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 = 1123120291 and 1123120300.

It is not an unprimeable number, because it can be changed into a prime (1123120373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80222873 + ... + 80222886.

It is an arithmetic number, because the mean of its divisors is an integer number (320891520).

Almost surely, 2^1123120313 is an apocalyptic number.

It is an amenable number.

1123120313 is a deficient number, since it is larger than the sum of its proper divisors (160445767).

1123120313 is an equidigital number, since it uses as much as digits as its factorization.

1123120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160445766.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1123120313 is about 33512.9872288341. The cubic root of 1123120313 is about 1039.4623432082.

Adding to 1123120313 its reverse (3130213211), we get a palindrome (4253333524).

The spelling of 1123120313 in words is "one billion, one hundred twenty-three million, one hundred twenty thousand, three hundred thirteen".