13113033123 has 4 divisors (see below), whose sum is σ = 17484044168. Its totient is φ = 8742022080.

The previous prime is 13113033121. The next prime is 13113033149. The reversal of 13113033123 is 32133031131.

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

It is not a de Polignac number, because 13113033123 - 2¹ = 13113033121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13113033123.

It is not an unprimeable number, because it can be changed into a prime (13113033121) 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, 2185505518 + ... + 2185505523.

It is an arithmetic number, because the mean of its divisors is an integer number (4371011042).

Almost surely, 2^13113033123 is an apocalyptic number.

13113033123 is a deficient number, since it is larger than the sum of its proper divisors (4371011045).

13113033123 is an equidigital number, since it uses as much as digits as its factorization.

13113033123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371011044.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13113033123 its reverse (32133031131), we get a palindrome (45246064254).

The spelling of 13113033123 in words is "thirteen billion, one hundred thirteen million, thirty-three thousand, one hundred twenty-three".