7113123 has 16 divisors (see below), whose sum is σ = 11158560. Its totient is φ = 4462848.

The previous prime is 7113109. The next prime is 7113133. The reversal of 7113123 is 3213117.

Added to its reverse (3213117) it gives a triangular number (10326240 = T₄₅₄₄).

It is not a de Polignac number, because 7113123 - 2¹² = 7109027 is a prime.

It is an Ulam number.

7113123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7113096 and 7113105.

It is not an unprimeable number, because it can be changed into a prime (7113133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7290 + ... + 8207.

It is an arithmetic number, because the mean of its divisors is an integer number (697410).

Almost surely, 2^7113123 is an apocalyptic number.

7113123 is a deficient number, since it is larger than the sum of its proper divisors (4045437).

7113123 is a wasteful number, since it uses less digits than its factorization.

7113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15523 (or 15517 counting only the distinct ones).

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

The square root of 7113123 is about 2667.0438691555. The cubic root of 7113123 is about 192.3180762844.

Adding to 7113123 its reverse (3213117), we get a triangular number (10326240 = T₄₅₄₄).

The spelling of 7113123 in words is "seven million, one hundred thirteen thousand, one hundred twenty-three".