2031105 has 32 divisors (see below), whose sum is σ = 3446784. Its totient is φ = 1020096.

The previous prime is 2031103. The next prime is 2031121. The reversal of 2031105 is 5011302.

It is not a de Polignac number, because 2031105 - 2¹ = 2031103 is a prime.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2031103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30282 + ... + 30348.

It is an arithmetic number, because the mean of its divisors is an integer number (107712).

2^2031105 is an apocalyptic number.

It is an amenable number.

2031105 is a deficient number, since it is larger than the sum of its proper divisors (1415679).

2031105 is a wasteful number, since it uses less digits than its factorization.

2031105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 2031105 is about 1425.1684111009. The cubic root of 2031105 is about 126.6419119060.

Adding to 2031105 its reverse (5011302), we get a palindrome (7042407).

It can be divided in two parts, 20 and 31105, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 2031105 in words is "two million, thirty-one thousand, one hundred five".