2102604123 has 8 divisors (see below), whose sum is σ = 2814381648. Its totient is φ = 1396281344.

The previous prime is 2102604121. The next prime is 2102604157. The reversal of 2102604123 is 3214062012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102604123 - 2¹ = 2102604121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102604123.

It is not an unprimeable number, because it can be changed into a prime (2102604121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1362786 + ... + 1364327.

It is an arithmetic number, because the mean of its divisors is an integer number (351797706).

Almost surely, 2^2102604123 is an apocalyptic number.

2102604123 is a deficient number, since it is larger than the sum of its proper divisors (711777525).

2102604123 is a wasteful number, since it uses less digits than its factorization.

2102604123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727373.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2102604123 is about 45854.1614578219. The cubic root of 2102604123 is about 1281.1082773942.

Adding to 2102604123 its reverse (3214062012), we get a palindrome (5316666135).

The spelling of 2102604123 in words is "two billion, one hundred two million, six hundred four thousand, one hundred twenty-three".