2111534005 has 16 divisors (see below), whose sum is σ = 2899384704. Its totient is φ = 1446125760.

The previous prime is 2111534003. The next prime is 2111534017. The reversal of 2111534005 is 5004351112.

It is a happy number.

It is not a de Polignac number, because 2111534005 - 2¹ = 2111534003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111534003) 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, 8007 + ... + 65476.

It is an arithmetic number, because the mean of its divisors is an integer number (181211544).

Almost surely, 2^2111534005 is an apocalyptic number.

It is an amenable number.

2111534005 is a deficient number, since it is larger than the sum of its proper divisors (787850699).

2111534005 is an equidigital number, since it uses as much as digits as its factorization.

2111534005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74316.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2111534005 is about 45951.4309352821. The cubic root of 2111534005 is about 1282.9193630019.

Adding to 2111534005 its reverse (5004351112), we get a palindrome (7115885117).

The spelling of 2111534005 in words is "two billion, one hundred eleven million, five hundred thirty-four thousand, five".