2111452340205 has 64 divisors (see below), whose sum is σ = 3789152414208. Its totient is φ = 997144888320.

The previous prime is 2111452340201. The next prime is 2111452340213. The reversal of 2111452340205 is 5020432541112.

It is not a de Polignac number, because 2111452340205 - 2² = 2111452340201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111452340201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1548634 + ... + 2573163.

It is an arithmetic number, because the mean of its divisors is an integer number (59205506472).

Almost surely, 2^{2111452340205} is an apocalyptic number.

It is an amenable number.

2111452340205 is a deficient number, since it is larger than the sum of its proper divisors (1677700074003).

2111452340205 is a wasteful number, since it uses less digits than its factorization.

2111452340205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121926.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 2111452340205 its reverse (5020432541112), we get a palindrome (7131884881317).

The spelling of 2111452340205 in words is "two trillion, one hundred eleven billion, four hundred fifty-two million, three hundred forty thousand, two hundred five".