2011134839 has 4 divisors (see below), whose sum is σ = 2298439824. Its totient is φ = 1723829856.

The previous prime is 2011134821. The next prime is 2011134847. The reversal of 2011134839 is 9384311102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9384311102 = 2 ⋅4692155551.

It is not a de Polignac number, because 2011134839 - 2¹² = 2011130743 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 (2011134809) 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, 143652482 + ... + 143652495.

It is an arithmetic number, because the mean of its divisors is an integer number (574609956).

Almost surely, 2^2011134839 is an apocalyptic number.

2011134839 is a deficient number, since it is larger than the sum of its proper divisors (287304985).

2011134839 is an equidigital number, since it uses as much as digits as its factorization.

2011134839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287304984.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2011134839 is about 44845.6780414791. The cubic root of 2011134839 is about 1262.2548937498.

The spelling of 2011134839 in words is "two billion, eleven million, one hundred thirty-four thousand, eight hundred thirty-nine".