1173123 has 20 divisors (see below), whose sum is σ = 2003760. Its totient is φ = 670032.

The previous prime is 1173121. The next prime is 1173127. The reversal of 1173123 is 3213711.

It is not a de Polignac number, because 1173123 - 2¹ = 1173121 is a prime.

1173123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1173096 and 1173105.

It is not an unprimeable number, because it can be changed into a prime (1173121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 468 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (100188).

2^1173123 is an apocalyptic number.

1173123 is a deficient number, since it is larger than the sum of its proper divisors (830637).

1173123 is an equidigital number, since it uses as much as digits as its factorization.

1173123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088 (or 2079 counting only the distinct ones).

The product of its digits is 126, while the sum is 18.

The square root of 1173123 is about 1083.1080278532. The cubic root of 1173123 is about 105.4664958037.

Adding to 1173123 its reverse (3213711), we get a palindrome (4386834).

It can be divided in two parts, 1173 and 123, that added together give a 4-th power (1296 = 6⁴).

The spelling of 1173123 in words is "one million, one hundred seventy-three thousand, one hundred twenty-three".