2102104142 has 4 divisors (see below), whose sum is σ = 3153156216. Its totient is φ = 1051052070.

The previous prime is 2102104099. The next prime is 2102104157. The reversal of 2102104142 is 2414012012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2102104142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525526034 + ... + 525526037.

It is an arithmetic number, because the mean of its divisors is an integer number (788289054).

Almost surely, 2^2102104142 is an apocalyptic number.

2102104142 is a deficient number, since it is larger than the sum of its proper divisors (1051052074).

2102104142 is a wasteful number, since it uses less digits than its factorization.

2102104142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051052073.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2102104142 is about 45848.7092729992. The cubic root of 2102104142 is about 1281.0067238702.

Adding to 2102104142 its reverse (2414012012), we get a palindrome (4516116154).

The spelling of 2102104142 in words is "two billion, one hundred two million, one hundred four thousand, one hundred forty-two".