2105318135012 has 24 divisors (see below), whose sum is σ = 3902693092704. Its totient is φ = 990315741312.

The previous prime is 2105318134999. The next prime is 2105318135071.

2105318135012 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2105318135012² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2105318135012.

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, 6436178 + ... + 6755369.

It is an arithmetic number, because the mean of its divisors is an integer number (162612212196).

Almost surely, 2^{2105318135012} is an apocalyptic number.

It is an amenable number.

2105318135012 is a deficient number, since it is larger than the sum of its proper divisors (1797374957692).

2105318135012 is a wasteful number, since it uses less digits than its factorization.

2105318135012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13193915 (or 13193913 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 2105318135012 in words is "two trillion, one hundred five billion, three hundred eighteen million, one hundred thirty-five thousand, twelve".