2104123120 has 40 divisors (see below), whose sum is σ = 5336823600. Its totient is φ = 765135360.

The previous prime is 2104123103. The next prime is 2104123121. The reversal of 2104123120 is 213214012.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2104123094 and 2104123103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104123121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194645 + ... + 1196404.

It is an arithmetic number, because the mean of its divisors is an integer number (133420590).

Almost surely, 2^2104123120 is an apocalyptic number.

2104123120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104123120 is an abundant number, since it is smaller than the sum of its proper divisors (3232700480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2104123120 is a wasteful number, since it uses less digits than its factorization.

2104123120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391073 (or 2391067 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2104123120 is about 45870.7218168627. The cubic root of 2104123120 is about 1281.4167093964.

Adding to 2104123120 its reverse (213214012), we get a palindrome (2317337132).

The spelling of 2104123120 in words is "two billion, one hundred four million, one hundred twenty-three thousand, one hundred twenty".