2011654111 has 4 divisors (see below), whose sum is σ = 2023700112. Its totient is φ = 1999608112.

The previous prime is 2011654109. The next prime is 2011654199. The reversal of 2011654111 is 1114561102.

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 2011654111 - 2¹ = 2011654109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011634111) 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, 6022750 + ... + 6023083.

It is an arithmetic number, because the mean of its divisors is an integer number (505925028).

Almost surely, 2^2011654111 is an apocalyptic number.

2011654111 is a deficient number, since it is larger than the sum of its proper divisors (12046001).

2011654111 is a wasteful number, since it uses less digits than its factorization.

2011654111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12046000.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 2011654111 is about 44851.4672112296. The cubic root of 2011654111 is about 1262.3635218415.

The spelling of 2011654111 in words is "two billion, eleven million, six hundred fifty-four thousand, one hundred eleven".