2104120402102 has 16 divisors (see below), whose sum is σ = 3324736522800. Its totient is φ = 995956266240.

The previous prime is 2104120402099. The next prime is 2104120402129. The reversal of 2104120402102 is 2012040214012.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 2104120402102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20290527 + ... + 20393962.

It is an arithmetic number, because the mean of its divisors is an integer number (207796032675).

Almost surely, 2^{2104120402102} is an apocalyptic number.

2104120402102 is a deficient number, since it is larger than the sum of its proper divisors (1220616120698).

2104120402102 is a wasteful number, since it uses less digits than its factorization.

2104120402102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40685871.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2104120402102 its reverse (2012040214012), we get a palindrome (4116160616114).

The spelling of 2104120402102 in words is "two trillion, one hundred four billion, one hundred twenty million, four hundred two thousand, one hundred two".