2102123104 has 24 divisors (see below), whose sum is σ = 4140224928. Its totient is φ = 1050637440.

The previous prime is 2102123063. The next prime is 2102123147. The reversal of 2102123104 is 4013212012.

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

It is a congruent number.

It is an unprimeable number.

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, 76674 + ... + 100414.

It is an arithmetic number, because the mean of its divisors is an integer number (172509372).

Almost surely, 2^2102123104 is an apocalyptic number.

It is an amenable number.

2102123104 is a deficient number, since it is larger than the sum of its proper divisors (2038101824).

2102123104 is a wasteful number, since it uses less digits than its factorization.

2102123104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26518 (or 26510 counting only the distinct ones).

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

The square root of 2102123104 is about 45848.9160613422. The cubic root of 2102123104 is about 1281.0105756261.

Adding to 2102123104 its reverse (4013212012), we get a palindrome (6115335116).

The spelling of 2102123104 in words is "two billion, one hundred two million, one hundred twenty-three thousand, one hundred four".