1115117423 has 4 divisors (see below), whose sum is σ = 1274419920. Its totient is φ = 955814928.

The previous prime is 1115117411. The next prime is 1115117447. The reversal of 1115117423 is 3247115111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3247115111 = 38629 ⋅84059.

It is a cyclic number.

It is not a de Polignac number, because 1115117423 - 2⁴ = 1115117407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115117392 and 1115117401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115117453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79651238 + ... + 79651251.

It is an arithmetic number, because the mean of its divisors is an integer number (318604980).

Almost surely, 2^1115117423 is an apocalyptic number.

1115117423 is a deficient number, since it is larger than the sum of its proper divisors (159302497).

1115117423 is an equidigital number, since it uses as much as digits as its factorization.

1115117423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159302496.

The product of its digits is 840, while the sum is 26.

The square root of 1115117423 is about 33393.3739385525. The cubic root of 1115117423 is about 1036.9875297119.

The spelling of 1115117423 in words is "one billion, one hundred fifteen million, one hundred seventeen thousand, four hundred twenty-three".