1123100117 has 2 divisors, whose sum is σ = 1123100118. Its totient is φ = 1123100116.

The previous prime is 1123100071. The next prime is 1123100129. The reversal of 1123100117 is 7110013211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1094220241 + 28879876 = 33079^2 + 5374^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123100117 - 2¹⁶ = 1123034581 is a prime.

It is a super-2 number, since 2×1123100117² = 2522707745610827378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123100095 and 1123100104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123100417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561550058 + 561550059.

It is an arithmetic number, because the mean of its divisors is an integer number (561550059).

Almost surely, 2^1123100117 is an apocalyptic number.

It is an amenable number.

1123100117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123100117 is an equidigital number, since it uses as much as digits as its factorization.

1123100117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 1123100117 is about 33512.6859114575. The cubic root of 1123100117 is about 1039.4561126180.

Adding to 1123100117 its reverse (7110013211), we get a palindrome (8233113328).

The spelling of 1123100117 in words is "one billion, one hundred twenty-three million, one hundred thousand, one hundred seventeen".