2011039 has 4 divisors (see below), whose sum is σ = 2021760. Its totient is φ = 2000320.

The previous prime is 2011033. The next prime is 2011057. The reversal of 2011039 is 9301102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9301102 = 2 ⋅4650551.

It is a cyclic number.

It is not a de Polignac number, because 2011039 - 2⁹ = 2010527 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 (2011033) 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, 5074 + ... + 5455.

It is an arithmetic number, because the mean of its divisors is an integer number (505440).

2^2011039 is an apocalyptic number.

2011039 is a deficient number, since it is larger than the sum of its proper divisors (10721).

2011039 is a wasteful number, since it uses less digits than its factorization.

2011039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10720.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 2011039 is about 1418.1110675825. Note that the first 3 decimals coincide. The cubic root of 2011039 is about 126.2234842854.

It can be divided in two parts, 20 and 11039, that multiplied together give a triangular number (220780 = T₆₆₄).

The spelling of 2011039 in words is "two million, eleven thousand, thirty-nine".