2105152515011 has 16 divisors (see below), whose sum is σ = 2743366175424. Its totient is φ = 1567637812224.

The previous prime is 2105152514999. The next prime is 2105152515017. The reversal of 2105152515011 is 1105152515012.

It is a cyclic number.

It is not a de Polignac number, because 2105152515011 - 2⁶ = 2105152514947 is a prime.

It is a super-3 number, since 3×2105152515011³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2105152515017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680396810 + ... + 680399903.

It is an arithmetic number, because the mean of its divisors is an integer number (171460385964).

Almost surely, 2^{2105152515011} is an apocalyptic number.

2105152515011 is a deficient number, since it is larger than the sum of its proper divisors (638213660413).

2105152515011 is a wasteful number, since it uses less digits than its factorization.

2105152515011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360796750.

The product of its (nonzero) digits is 2500, while the sum is 29.

Subtracting from 2105152515011 its reverse (1105152515012), we obtain a palindrome (999999999999).

The spelling of 2105152515011 in words is "two trillion, one hundred five billion, one hundred fifty-two million, five hundred fifteen thousand, eleven".