1113123 has 16 divisors (see below), whose sum is σ = 1641600. Its totient is φ = 665280.

The previous prime is 1113103. The next prime is 1113137. The reversal of 1113123 is 3213111.

It is not a de Polignac number, because 1113123 - 2⁶ = 1113059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113099 and 1113108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2748 + ... + 3126.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

2^1113123 is an apocalyptic number.

1113123 is a deficient number, since it is larger than the sum of its proper divisors (528477).

1113123 is a wasteful number, since it uses less digits than its factorization.

1113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its digits is 18, while the sum is 12.

The square root of 1113123 is about 1055.0464444753. The cubic root of 1113123 is about 103.6368932372.

Subtracting from 1113123 its sum of digits (12), we obtain a palindrome (1113111).

Adding to 1113123 its reverse (3213111), we get a palindrome (4326234).

The spelling of 1113123 in words is "one million, one hundred thirteen thousand, one hundred twenty-three".