2111013011 has 4 divisors (see below), whose sum is σ = 2121018024. Its totient is φ = 2101008000.

The previous prime is 2111013007. The next prime is 2111013041. The reversal of 2111013011 is 1103101112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2111013011 - 2² = 2111013007 is a prime.

It is a super-2 number, since 2×2111013011² = 8912751865222572242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111012983 and 2111013001.

It is not an unprimeable number, because it can be changed into a prime (2111013041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5002190 + ... + 5002611.

It is an arithmetic number, because the mean of its divisors is an integer number (530254506).

Almost surely, 2^2111013011 is an apocalyptic number.

2111013011 is a deficient number, since it is larger than the sum of its proper divisors (10005013).

2111013011 is a wasteful number, since it uses less digits than its factorization.

2111013011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005012.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 2111013011 is about 45945.7616217209. The cubic root of 2111013011 is about 1282.8138396763.

Adding to 2111013011 its reverse (1103101112), we get a palindrome (3214114123).

The spelling of 2111013011 in words is "two billion, one hundred eleven million, thirteen thousand, eleven".