2311111011 has 12 divisors (see below), whose sum is σ = 3387083336. Its totient is φ = 1400673120.

The previous prime is 2311111009. The next prime is 2311111031. The reversal of 2311111011 is 1101111132.

It is not a de Polignac number, because 2311111011 - 2¹ = 2311111009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311111031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3182986 + ... + 3183711.

Almost surely, 2^2311111011 is an apocalyptic number.

2311111011 is a deficient number, since it is larger than the sum of its proper divisors (1075972325).

2311111011 is a wasteful number, since it uses less digits than its factorization.

2311111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366722 (or 6366711 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 2311111011 is about 48074.0159649680. The cubic root of 2311111011 is about 1322.1283026968.

Adding to 2311111011 its reverse (1101111132), we get a palindrome (3412222143).

The spelling of 2311111011 in words is "two billion, three hundred eleven million, one hundred eleven thousand, eleven".