2111701005 has 24 divisors (see below), whose sum is σ = 3688233120. Its totient is φ = 1117640160.

The previous prime is 2111700979. The next prime is 2111701013. The reversal of 2111701005 is 5001071112.

It is a happy number.

It is not a de Polignac number, because 2111701005 - 2⁵ = 2111700973 is a prime.

It is a super-2 number, since 2×2111701005² = 8918562269036020050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173215 + ... + 185004.

It is an arithmetic number, because the mean of its divisors is an integer number (153676380).

Almost surely, 2^2111701005 is an apocalyptic number.

It is an amenable number.

2111701005 is a deficient number, since it is larger than the sum of its proper divisors (1576532115).

2111701005 is a wasteful number, since it uses less digits than its factorization.

2111701005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358361 (or 358358 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 2111701005 is about 45953.2480353674. The cubic root of 2111701005 is about 1282.9531838931.

Adding to 2111701005 its reverse (5001071112), we get a palindrome (7112772117).

The spelling of 2111701005 in words is "two billion, one hundred eleven million, seven hundred one thousand, five".