2111303011 has 4 divisors (see below), whose sum is σ = 2123945712. Its totient is φ = 2098660312.

The previous prime is 2111302997. The next prime is 2111303017. The reversal of 2111303011 is 1103031112.

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 2111303011 - 2¹³ = 2111294819 is a prime.

It is a super-2 number, since 2×2111303011² = 8915200808515332242, 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 = 2111302982 and 2111303000.

It is not an unprimeable number, because it can be changed into a prime (2111303017) 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, 6321100 + ... + 6321433.

It is an arithmetic number, because the mean of its divisors is an integer number (530986428).

Almost surely, 2^2111303011 is an apocalyptic number.

2111303011 is a deficient number, since it is larger than the sum of its proper divisors (12642701).

2111303011 is a wasteful number, since it uses less digits than its factorization.

2111303011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12642700.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2111303011 is about 45948.9174083569. The cubic root of 2111303011 is about 1282.8725790868.

Adding to 2111303011 its reverse (1103031112), we get a palindrome (3214334123).

The spelling of 2111303011 in words is "two billion, one hundred eleven million, three hundred three thousand, eleven".