1118703123 has 8 divisors (see below), whose sum is σ = 1657338000. Its totient is φ = 745802064.

The previous prime is 1118703073. The next prime is 1118703127. The reversal of 1118703123 is 3213078111.

It is a happy number.

It is not a de Polignac number, because 1118703123 - 2⁶ = 1118703059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 41433449 = 1118703123 / (1 + 1 + 1 + 8 + 7 + 0 + 3 + 1 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (1118703127) 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 7 ways as a sum of consecutive naturals, for example, 20716698 + ... + 20716751.

It is an arithmetic number, because the mean of its divisors is an integer number (207167250).

Almost surely, 2^1118703123 is an apocalyptic number.

1118703123 is a deficient number, since it is larger than the sum of its proper divisors (538634877).

1118703123 is an equidigital number, since it uses as much as digits as its factorization.

1118703123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41433458 (or 41433452 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1118703123 is about 33447.0196430115. The cubic root of 1118703123 is about 1038.0978306670.

The spelling of 1118703123 in words is "one billion, one hundred eighteen million, seven hundred three thousand, one hundred twenty-three".