2818123523 has 4 divisors (see below), whose sum is σ = 2840313600. Its totient is φ = 2795933448.

The previous prime is 2818123519. The next prime is 2818123531. The reversal of 2818123523 is 3253218182.

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

It is not a de Polignac number, because 2818123523 - 2² = 2818123519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2818123573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11094848 + ... + 11095101.

It is an arithmetic number, because the mean of its divisors is an integer number (710078400).

Almost surely, 2^2818123523 is an apocalyptic number.

2818123523 is a deficient number, since it is larger than the sum of its proper divisors (22190077).

2818123523 is a wasteful number, since it uses less digits than its factorization.

2818123523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22190076.

The product of its digits is 23040, while the sum is 35.

The square root of 2818123523 is about 53086.0011961722. The cubic root of 2818123523 is about 1412.4942059229.

The spelling of 2818123523 in words is "two billion, eight hundred eighteen million, one hundred twenty-three thousand, five hundred twenty-three".