2011012011 has 12 divisors (see below), whose sum is σ = 2922618088. Its totient is φ = 1332448704.

The previous prime is 2011012009. The next prime is 2011012021. The reversal of 2011012011 is 1102101102.

It is a happy number.

It is not a de Polignac number, because 2011012011 - 2¹ = 2011012009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011011984 and 2011012002.

It is not an unprimeable number, because it can be changed into a prime (2011012001) 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, 683950 + ... + 686883.

Almost surely, 2^2011012011 is an apocalyptic number.

2011012011 is a deficient number, since it is larger than the sum of its proper divisors (911606077).

2011012011 is a wasteful number, since it uses less digits than its factorization.

2011012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371002 (or 1370999 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2011012011 is about 44844.3085686467. The cubic root of 2011012011 is about 1262.2291962518.

Adding to 2011012011 its reverse (1102101102), we get a palindrome (3113113113).

The spelling of 2011012011 in words is "two billion, eleven million, twelve thousand, eleven".