13113123 has 4 divisors (see below), whose sum is σ = 17484168. Its totient is φ = 8742080.

The previous prime is 13113119. The next prime is 13113127. The reversal of 13113123 is 32131131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13113119) and next prime (13113127).

It is a cyclic number.

It is not a de Polignac number, because 13113123 - 2² = 13113119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13113127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2185518 + ... + 2185523.

It is an arithmetic number, because the mean of its divisors is an integer number (4371042).

Almost surely, 2^13113123 is an apocalyptic number.

13113123 is a deficient number, since it is larger than the sum of its proper divisors (4371045).

13113123 is an equidigital number, since it uses as much as digits as its factorization.

13113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371044.

The product of its digits is 54, while the sum is 15.

The square root of 13113123 is about 3621.2046338201. The cubic root of 13113123 is about 235.8135257316.

Adding to 13113123 its reverse (32131131), we get a palindrome (45244254).

The spelling of 13113123 in words is "thirteen million, one hundred thirteen thousand, one hundred twenty-three".