2111463211513 has 4 divisors (see below), whose sum is σ = 2125634105700. Its totient is φ = 2097292317328.

The previous prime is 2111463211489. The next prime is 2111463211579. The reversal of 2111463211513 is 3151123641112.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1153899194809 + 957564016704 = 1074197^2 + 978552^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111463211513 - 2²⁵ = 2111429657081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111463211213) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7085446870 + ... + 7085447167.

It is an arithmetic number, because the mean of its divisors is an integer number (531408526425).

Almost surely, 2^{2111463211513} is an apocalyptic number.

It is an amenable number.

2111463211513 is a deficient number, since it is larger than the sum of its proper divisors (14170894187).

2111463211513 is a wasteful number, since it uses less digits than its factorization.

2111463211513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14170894186.

The product of its digits is 4320, while the sum is 31.

Adding to 2111463211513 its reverse (3151123641112), we get a palindrome (5262586852625).

The spelling of 2111463211513 in words is "two trillion, one hundred eleven billion, four hundred sixty-three million, two hundred eleven thousand, five hundred thirteen".